I've only gone to two of the senior classes and found the instructors and the exercises terrific--geared to seniors, carefully explained, friendly, personable. Also, the person at the desk is polite and seems very nice.
Haven't tried any equipment yet.
I've been a member of Retro Fitness for 4 months and it's been a great experience. The classes are excellent and the staff is friendly and helpful. My family and I are really happy we joined!