OVH definitely does not provide good hardware; we have more broken disks and NICs there than all our other hosters combined.
Edit: I see we might be exceptions. We have been using OVH since 2005, running up to 40 servers about 2 years ago. We are also running at iWeb, Softlayer, Amazon and Leaseweb. Hardware wise the only one we have issues with is OVH, and i'm talking every 2 weeks since 2005 (in 2006 they managed to lose all our data on 2 clustered RAID machines; one died, all corrupted, then when we were busy setting up the replacement, the other one died...). But they are so cheap and easy (like the easy OS installation which is cloud-like, already for many years) we stick with them for some projects which need high spec hardware in clusters. Note: the SSD drives are great, no problems with those so far (knock on wood).