I was there last weekend. First time at one. The place was pretty full and every time I drive by, the lot is full. My take on the ambiance... Very nice in terms of building and grounds and very, very, large. I am not a fan of the mall-like atmosphere... almost food court-ish even though their food menu is mostly pizza. It was cafeteria style as well for beer and food (lines can be long). Seemed a bit sterile and the first thing you walk in to is their gift shop... like going to or exiting and amusement park/zoo. Oddly, lots of children there. I only had one beer. It was an Imperial Stout called "Half Truth". I have been into bourbon barrel stouts lately. I wasn't a fan of this one. Very chocolately and not in a subtle way. More like they poured chocolate flavoring in. With that said, I have a BIL that absolutely dies for this place. He drinks almost exclusively IPAs and as an aside, loves Disney World (has gone twice/year for the last 20 years). So I can see why he might like the environment more than I.
In contrast...
The week before, we went to the Paradox Brewery in North Hudson. This was more what I like. The beer was great. I like lagers too and they had some nice ones as well as two different Belgiums I really liked (and brought some home). They had a full menu there and table service. I ate a fish dinner and it was very good. The building/grounds were not quite as fancy as Tree House but still nice and look forward to going during better weather.