Any opinions on budget-friendly gyms?

First post on imzy ever, woo!

Do you folks have any opinions on budget-friendly gyms like Blink or Crunch Essentials or Planet Fitness, etc.? I'm currently eyeing a membership to Blink ($25/month where I am). No group classes, which I'm fine with, but you do get access to personal trainers.

Of course, you get what you pay for, but of all the budget-friendly gyms I've been looking at, Blink seems to have the best reviews in my area.