I use La Fitness esp. for the various Aerobics / Yoga / Zumba classes.
1st thing. - If you take the time to find out who the best teachers are this turns out to be tremendous value. I use Trena / Teresa for yoga, Scheyla for Zumba, Melanie / Nancey fro Step, Trena for bodyworks, Jenna for club boxing and there are many more good teachers out there. There are also some poor teachers - like I said just takes a little time to figure it out.
The second thing is that there are so many LaFitness clubs around - it doesn't take much time to get a summary of of the schedules on line for all the clubs and figure out a good routine e.g. Melanie Sat morning step tempe, Scheyla Monday / Friday Zumba Stapley and dobson, Trena sat morn Yoga Dobson, Teresa Sunday morning Yoga, etc. etc.
The third thing is to wait and execute on the special deals. e.g. sometimes at Xmas or New Year they have the buy 2 years get the third free plus keep the same rate...
Some of the gyms have gotten a little scruffy, but over time they upgrade all the gyms - and generally kept reasonably clean despite the heavy traffic..
When you consider you can pay over $10 for one yoga class on the outside - works out at great value in my mind...