Edit: Oh and I guess I need to go ahead and get married. Mainly because I get sick of saying GF. We've been together going on like 8 years or so. I guess I could just call her my wife. She wants to get married less than I do.
I use the TRX system mainly because of time and I don't want constantly swap out weights and changing rack settings, etc... Her son smashed a giant mirror in the exercise room. I find that lifting in the morning works best since I'm usually tired/worn out by the end of the day, but time is a factor trying to get stuff in before work. Free weights and a squat rack are a pain.
I saw some reviews complaining about shifting the Tonal arms around, etc... but it can't be worse than using a squat rack/bench with free weights, can it?