★★★★★ I've been going to my local Econofitness for several years now, and for the most part am satisfied. They do take long sometimes to repair broken machines, but overall it's great value for the money. I do wish they would increase the range of dumbbell weights above 75lbs, but I digress.
While the popularity of any specific Econofitness will vary based on the area, they tend to get very busy at certain times of the day. Google has live "busy" times posted, so use them if you want to avoid the really busy times (hint: going after work means you may have to wait around for machines).