Pros
You get to work for a company that lives and breathes its mission: "every life fully lived." The people who work at ClassPass are amazing-- intelligent, outgoing, and passionate about their jobs and the product. Its fast-paced, things change daily which keeps our jobs exciting and challenging. Not for the faint of heart, but a really amazing place to work for the right fit. I've noticed most employees tend to be self-starters, have upbeat and positive personalities, and are pretty active (although not everyones an athlete by a long shot). Tons of healthy snacks in the office, plus pretty much unlimited classes, and many other perks, I think it'd be pretty tough to be unhappy working here. Excellent transparency, and all employees are encouraged to "challenge and defend," if they think something could improve or be done differently.
Cons
If you're not someone who knows how to ask for what you want, ClassPass wouldn't be a good fit. Everyone who does well is passionate about the product, and that only comes across if you're self-motivated and actively seek out learning and development opportunities. People who leave the company are the type who are more comfortable waiting for opportunities to be presented to them, and this just doesn't happen at such a start up