I took my almost 3 yo daughter here twice-once during the grand opening week, and once for a 3 yo friend's birthday party. It struck me as a bright, airy, attractive, clean space with competent staff. My daughter definitely enjoyed it both times, but she hasn't really mentioned the place since our last visit (if she truly loves a place, she will ask about it repeatedly). Her favorite was the huge climbing structure with slide. She went down the slide about a million times. She also enjoyed the elaborate market/kitchen and gym play areas, although she lost interest if they got too crowded. UMe is a good choice on a rainy day. Plenty of parking in the lot.
The place is a bit too far for us to become members, but if we lived nearby, the pricey fee may be worth it. The organic cafe hadn't opened yet during our 1st visit so I can't comment on that or any of the classes, which we haven't tried.