In an essence: not recommended, utter cr** (I am sorry for my French and for hurting the feelings of whom it may concern).

O boy, where do I start?

PRICETAG (as of 25.1.20): parking ~ 5 eur / 2 hours, entrance 32 eur (2 adults & 5 y.o. child, small kids - free entrance) / 4 hours, 175g Moomin biscuits 3,9 eur (normal price in Helsinki shops around 2,5 eur, 3 eur tops) = give or take - 40 eur (spoiler: for the 40 minutes of nightmare). Well, let us see what you get for this price, shell we...

1. Outdoor parking (yeah, it's cold outside. It also could be free for the visitors, buut... nono).

2. A lot of people walking around the building, visiting other activities in Tampere talo (workshops, concerts etc.), bumping into you. Feels really nice and comfortable with small children, as you no doubts have guessed.

3. The wardrobe. Turns out as a Moomin museum visitor you are not an eligible to use the spacious, guarded, staffed wardrobe. Instead you have to use one of the sharp hooks (with a "use at own risk" sign) positioned in ~ three rows. It is massively overcrowded! Do you have a nice coat? Under no circumstances should you bring it here. I mean it, it will likely end up in the garbage.

4. Moomin museum experience. You are met with a guide of some kind. She/he basically tells you what you can't do. I.e. you can't give anything to drink or eat to your 1 y.o. baby (I guess the fuing sanctum is so sacred). You can't take photos (not that there is anything to photograph there). And... the guide disappears thereafter (nevertheless watching from the distance. To see if you/your kids are doing something forbidden, I guess). The ticket is valid for 4 hours, but there is really no much to see inside (granted, if you are true believer & know all the books/series by heart that may not be the case): there is like 10-20 stands with sculptures, drawings, possibility to see the videos / new books, nicely designed light, couple of interesting attractions (touch the animation and the lightning strikes) and that's it, not a hell of a lot more... It literally didn't even took us 20 minutes (same time we spent trying to deal with the wardrobe). No, I'm not exaggerating. And you can't really enjoy listening to the recorded audio stories by the stands with 1 and 5 y.o. children screaming to give them overpriced shy cookies which you just bought by the entrance, trying to explain that they'll have them later. For that so called experience they charge you more or less the same amount they do in the HERMITAGE museum!! I mean wow, just wow!

I could go on and on about how boring / overpriced / useless / poorly organized the place is, but... long story short: if you have a sense of dignity, small children and/or not a 101% fan, do not go in there! It just doesn't worth it and is a complete waste of your time, money and energy. With a luck it will also ruin your day (pick idk espionage museum or a decent SPA instead).