Since being purchased by Berkshire Hathaway Portillo's has seen a number of changes, some good and some not so good. The food quality has always been very good and remains so. They didn't invest a billion dollars to change what was their bread and butter (pun intended). Some things have been added to the menu, like chicken fingers for example, which are very good. One of the things that has changed is the attention to detail. When you special order something it doesn't always come out the way you asked for it. That's especially true with online orders where you can be very specific. We travel a lot and know where we can find a Portillo's along the way. I use the very well designed app and order a chopped salad for my wife every time we are headed from St Louis to the Chicago area. That means Normal, Illinois is a usual pit stop for us. I special order it just the way she likes it. No onion, no red cabbage, substitute the cheeses and ranch dressing instead of the house. 3 out of the last 4 times they have gotten some aspect of the special order wrong, or they have forgotten the bread. Oh no... don't ever forget the bread! Come on! Pay attention, dot the i's and cross the t's. Problem is we are already back on I-55 and aren't real interested in coming back to get the issue fixed. So, we have learned to check the order before we leave even though we are in a bit of a hurry most times, and if there's an issue we are there to get it fixed, which of course takes even more time. This last time they didn't get the dressing right so I went in and this time I asked to speak with the manager. A very nice, polite handlebar mustachioed gentleman came over and I explained to him what we had experienced recently and that I thought he, as a manager, would like to know. He whole heartedly agreed, apologized for what we had been experiencing and told me he was a regional trainer and would be focusing on this with their teams in multiple locations. Good, no... Great! Thus the 5-stars for service. We will continue to come back because, well, it's Portillo's after all. When are you coming to the St. Louis area? We need your quality of food down here!