they are seriously overpriced; charging 30-50% premium on hardware. A lot of companies are stuck with old resellers, and they've never looked for alternatives.
An r640
2x gold 6138
256GB DDR4 2666MHz
2x PSU 750W
Idrac enterprise
would cost 15-20k from them, while you can get same spec (maybe even better) for around 5-7k
While also sometimes putting wrong memory sticks; or once our company ordered 128GB ddr3 server - but they've only gave 2x64GB sticks... (thank god - i don't have to deal with them anymore.)