Pros
WPI is truly a community and, although politics are present, it's better than most places. The benefits are good - free tuition at WPI or tuition reimbursement at another school, 403(b) with matching, generous time off (better for salaried employees), and communication is good. All of their employee benefits, including a salary scale are listed on their website.
Cons
The pay is less than in a corporate environment, but that's to be expected in academia. Politics did play a role in the promotion of managers to higher level management; however, there is some room to advance and move into management and/or to make lateral moves. Unfortunately, there are are professors and management who generally treat you badly and, due to tenure or a good relationship with upper management, they'll be there forever, but I found it was better here than most places I've worked.