Pros
I haven't had much exposure to all the people at all levels of Perficient, but the people I have worked with are all very bright and very motivated. This, I have found, is the main reason I like working for this company. I initially liked the company because of the very nature of the business it was in: consulting. The ability to travel the country, meet new people, work on different projects using different skillsets, networking, etc was all very appealing to me. But once I have worked on a couple of projects, I have found that one of the most important reasons I love working for this company is because of the people that I get a chance to work with everyday. As I have said above, they are all very motivated, ambitious, dedicated, and intelligent. I not only learn from them by example, but they are more than willing to spend time teaching me about a subject I may not be familiar with, regardless of the level. Also, I can't complain about the bonus structure either :)
Cons
I wouldn't say there are many downsides to Perficient from a long term perspective. Sure, I do have some gripes about the logistics of the company, but i would imagine most people do as well (the expense system Primavera comes to mind). One aspect of the company that i am concerned about, and it has showed in our declining stock price, is not the inability to grow organically, because i think we can, but the reluctance of upper management to let the company grow organically. They are constantly on the prowl for acquisition targets. I have been on numerous investor calls where the company has just been hammered by investors wanting to know about organic growth. I have no doubt that with the quality of people Perficient employs there is substantial opportunity for organic growth, but it seems management always covers up that ability with another acquisition. Taken with a grain of salt, I complain about the stock price declining but the overall macroeconomic conditions have been less than favorable the past 6 months.