FastServ (fastserv.com) is a great provider.
We have been using them to host a critical piece of our company infrastructure offsite for 14 months now and it has been nothing but amazing.
They are traditionally a managed hosting provider, but we don't use them for that. We have an unmanaged server with them.
Our setup with them is a dual power - dual network solution for redundancy.
Network 10/10 -
We have not had any downtime at all. The speed is great. We use their San Diego location, and the latency is also very good.
Support 10/10 -
We have not needed any support at all once the server was deployed. However they keep us apprised of any possible service impact during maintenance. Randy also worked with me closely on their datacenter migration that occurred this weekend. He went out of his way to personally move our server for us, and assist us with a boot up issue that occurred to keep our downtime to an absolute minimum.
Price 10/10 -
There are cheaper options, but the value we receive is great.