Pros
Colleagues and other consultants tend to be much higher skilled than the average. For consultants, rates are typically higher than other headhunters in exchange for more challenging contracts.
Cons
Once at a client, there's little Quadrus does to justify their high premiums after the initial welcome. No different than any other headhunter. Clients - For the rate, you'll likely get your money's worth for and get higher quality individual developers. Other than that, Quadrus as a company provides little value other than being available to offer generic advice. It is far more cost effective for both sides to directly hire the contractor/employee, rather than to pay the high overhead. Consultants - While you'll hear lots of internal praise at Quadrus and their vast experience, at the end of the day it is just you and your colleagues. It may be better find your own client rather than forgo the thousands $/month commissions Quadrus collects as a glorified head hunger. If you have even basic negotiation skills, It's much easier going it alone and avoid the extra overhead of reporting to a middle man. Employees - Mandatory 8.5 hour days without compensation.