Some people are disappointed because the owners are not perceived as generous (no match on the 401k) but the sales compensation plans are very generous. It really depends on how you define generous and what is important to you.
The people who don't succeed here are the ones who fight the culture. We are growing and changing and some people cannot cope with that. It really just boils down to knowing yourself, what work environment is good for you, then go find it. If the expectations seem high, you have to step up and do better. If you don't *want* to do better, you are in the wrong company.