I can't say I have experience in gyms seeing this is my first, but I'm definitely glad I picked…read morethis one after a recommendation from a friend.
Firstly, the thing that sold me was they have a 2 lane private pool, and surprisingly it's hardly ever busy, usually I'm the only one in there, because I can't stand sharing a lane with 5 other people at a public pool.
The gym also has a spa pool, steam room, sauna, and showers with shampoo and shower gel provided.
The main feature of the gym is the supervised circuit, a set of 8 different weight machines to work out your whole body. It isn't full blown personal training but the trainers are there every step of the way to setup the next machine and push you till failure to get the most out of your workout. I've definitely seen a good improvement in strength and muscle gain from this.
The trainers are also super friendly, and always offer advice and help with learning to use other machines in the gym.
The only downfall is obviously all this comes at a price, which is a fair bit higher than a gym like Jett's, it's around 90-150 per month, depending on the term you select. But in my opinion, well worth it, especially for new gym-goers like myself, for the supervised circuit and the amenities.
Only other thing is being a highly staffed gym, it's not open 24/7. I think currently it's about 5:30am to 9pm during the week.
PS, keep an eye on their website if you're looking at joining, they usually have a decent joining offer.