Mansun Sushi — Restaurant in Diamond Bar

I can definitely see why people are raving about this pretty new Japanese restaurant! My boyfriend came here with his friends and liked it so much, he decided to bring his family and me back again a few days later.

Ambience: The restaurant itself is quite small, so apparently there is usually a long wait in order to be seated. They also don't accept reservations after 7 PM or so either, which is quite fair. And this place is quite popular among the younger crowd who don't seem to mind the hour or so wait that might occur. There isn't a parking lot either - besides street parking - or in the lot next door (which technically is a part of the farmer's market). We were lucky and were able to be seated in a private room. The pictures on the wall and the furniture all were very nice, but the food is the focal point of this review!

Food: People mainly come here for the uni bowl, which I think is a part of their sashimi deals. We ordered two large sashimi platters. Because they are a Korean owned restaurant, they served a lot of unique small dishes that included snails, kimchi, seaweed, shrimp, pancake, etc. The sashimi platter was enormous and had so many slices of fresh fish on it - salmon, yellowtail, albacore, lobster tail ... I can't eat fish, but I did taste the salmon and lobster tail, and both were amazing. Salmon was soft, succulent and overall smooth.

But the best part of the meal was indeed the uni bowl. Each person had their own individual uni shell that had sticky rice, seaweed, uni, fish egg, and picked radish. The sticky rice had good flavor, so when mixed with everything else (along with the sesame and seaweed), had incredible flavor that made me want to keep eating even though I was already pretty full.

After the uni bowl, they take the lobster (which is placed in front of you on the platter while it is slowly dying ... poor guy) to make into a lobster soup. Definitely hit the spot after a pretty full meal. And on top of that - vanilla ice cream to be served at the end!

Service: was amazing. Everybody was courteous and really nice. They stopped by often to make sure we were okay, and I felt like they were constantly bringing us food. Even though I couldn't eat a lot of the food that was served, I felt pretty full by the end!

tl;dr - I would DEFINITELY recommend this restaurant, especially if you are a fan of sushi or uni. Fresh fish, great quality, large quantity at a pretty good price! Just try to go early .. or if you don't mind, come with people you can chat with while waiting for a table. Definitely will come back to try that...

This is a Korean Sashimi restaurant also known as a HwehtJip. Main difference of a Korean Hweh is that it comes with multiple items that are part of it - sort of a course meal and a utilitarian version of a Japanese omakase. I really love an authentic Korean Hwejip!

With a party of 3 adults and a small child, we ordered a large sashimi plate for $100. It came with many items. Most were pretty standard Korean hweh-jip food offerings, and seemed fillerfoodish. Sashimi plate featured mostly snapper and other white, translucent fleshy fish. There was few thinly sliced - I think 4 slices - faytty tuna and salmon.

Staff was friendly and attentive at this small restaurant.

2 whole sea urchin rice came with this hweh dinner plate and was very tasty. I think this was the highlight of this dinner. It was a Large size sea urchin in it's natural shell. And to finish off, a spicy fish soup which was a bit bland - I was hoping for a steamy, spicy broth with some fish bones. As a drinker, I really look forward to the rich fish soup at korean hwehjip restaurants - it's an indicator of the restaurant and its overall dedication to food. Although I was impressed by the sheer volume of food, I was a bit disappointed by its overall generic-ness(if that's a word). We did not finish the pot.

Overall, this restaurant is clean and staff is attentive. However, food is mediocre. I think they may have stopped being innovative at one point - owners got too comfortable with their offerings and becoming cookie-cutter.

Dont go to this restaurant expecting a Japanese style sushi bar experience, as it is a very traditional Korean hwehjip

Despite some of it's short coming, I would recommend it for novice Korean sashimi patrons as it is a different experience from a Japanese sashimi.

It was nice to visit after 30 years to see this restaurant still in business...

Great quality sushi in a friendly mom and pop restaurant! The restaurant itself is very cozy, limited seating but luckily on a Tuesday evening, there was no wait. Small private parking lot adjacent to the restaurant was convenient!

The meal starts with complimentary salad, miso soup, and edamame. These were a nice surprise!

We then went on to the fried calamari and baked mussels. Calarami was nice and perfectly crispy with a drizzle of a sweet sauce, it was perfect to share amongst three people. The baked mussels were amazing!! Topped with cheese, a sweet and savory sauce, the mussels were juicy boys and definitely got us excited for our main sushi entrees!

We went with the albacore roll, spicy tuna roll, eel sashimi, salmon roe sashimi, dragon roll, and yellow tail sashimi. Initial impressions - great presentation, and came out relatively quick!

The sashimi was FRESH, and the perfect amount of rice. I dislike when there's any more than a pinch of rice and Mansun did the portions just right! The salmon roe was a generous portion, and with each bite, they popped heavenly in my mouth. The rolls were meticulously made as well and tasted amazing!

For the three of us, I think we did well with the portions and by the end, felt quite satisfied...

This is when the waitress offered complimentary ice cream! How could we say no...so we all decided on the green tea ice cream. It wasn't too sweet, and was the story book ending to our meal.

They do offer bento box style meals with tempura as lunch and dinner specials as well, so in the future I'd absolutely like to try these out!

Overall, highly recommend and will definitely be back. Don't let the unassuming exterior appearance of the plaza dissuade you from giving...