Currently doing the 5-punch pass for $30. Living downtown, seems like the best bang for my buck if im only going to be going once a week (other places downtown want $40/month and lack a pool). This gives me access to the free group fitness classes, with LOTS of evening options, and a pool.
Only downside for someone living downtown, is getting here without a car. Only free trolley that runs after 7pm is the casino line so you have to finish before 7pm on weekday, or later on a weekday or any weekend, have to walk the distance to the casino line. check back in winter to see how that works out.