Unfortunately, the negative effects of trying to please venture capitalists are definitely showing in this company. Sadly, nothing in my experience ruins a good tech company, or a good work environment, faster than greedy management who bought their way in instead of growing with the company. It's really a shame to see it happening here.
The teams were still excellent when I was there, but "the investors" were intruding in the daily business operations more and more, and not in ways that benefitted the employees or the customers. Lots more time was being devoted to producing meaningless graphs and tracking KPIs, and less care and time was spent on supporting customers and helping employees grow and collaborate as a team. You definitely got the impression that the company values were of zero importance to the investors, and there was open worry about what decisions they would make and force the company to go along with in order to make or save money. Things like high turnover, which had never been issues before, were beginning to take place; a real shame.
I suppose another "con" is that there wasn't a ton of room to advance job-title-wise in this tight-knit group, but there was plenty of room to grow by taking on new projects and offering to develop and implement your ideas, which I personally found much more valuable.
A possible con for some people is that you really do need to self-start, self-organize and make it your business to work closely with your team, educate yourself, and find places to help out -- but for me, this was a huge "pro", as I always felt like my team was working together, and like I was encouraged to have ideas, share them, and implement them. It's a lot of self-driving, but you have a lot of support (or at least did -- again, I'd check before working here to be sure the investors haven't ruined that)