I have only great things to say about World Gym! Compared to many other gyms I've been to, World is definitely my favourite.
It is clean and well kept, spacious, well ventilated and the best part for a night owl like me - it's 24 hours! I usually go after 12AM so I haven't experienced what it's like during peak hours. But relative to Goodlife and Lifetime, I can't imagine would be as crowded simply because there are less members.
World Gym is a gym for heavy lifters and strength trainers. The members are super friendly and helpful. Oh and of course, you can't beat the price of only $10/month and for an extra $10 you can bring a guest whenever you'd like!