I was a member for a few years. It's definitely dated, but the facilities are fine* - big gymnasiums, large modern workout area, pool. Spring for the "membership plus" and you get a Steam room and Sauna too
The clientele are probably on-the-whole poorer that you would see at the mountain location, but that shouldn't be a concern - everyone including the staff were friendly.
*the exception is their squash courts. The sport must not be very popular anymore, as they've boarded one of the three up and let the other two fall into disrepair
