i used to be a member & i'm not a big fan - but that's because it wasn't suited to me specifically - loads of people love them!
i thought the facilities were pretty good - i've been to a couple of them & i thought the showers/changerooms were nice and there was a reasonable amount of equipment.
i think it cost me around $80 a month for a membership that allowed me to go to more than one of their gyms, it's cheaper if you just nominate one gym. i think it's a 12 month contract that you need to commit to.
the reason they didn't suit me was that they didn't do any sort of fitness assessment to begin with & just left me to my own devices. there were no real staff on the floor at the ones i went to - mostly because the staff there (other than on the desk & taking classes) were actual trainers who were either training someone or who would prefer you to pay for their advice.
my pt calls them 'finance first'
BUT i do think if you're someone who already knows what workout they should be doing (and how to adjust it as you go along) or who really just wants to go and do cardio/classes, then it's not a bad option - they definitely offer lots of les mills classes.
hope that doesn't sound too negative!!
also - i think sarah c will be able to point you to a site where you can get a free pass so you can try out the gym