WiredTree has a great rep around WHT, Although I'll add that my two months with a VPS from SteadFast for a personal project about 6 months back was great, and I'd highly recommend 'em if you don't mind the lack of cPanel.
If you want cPanel, WiredTree is the way to go on this list for sure.
Best of luck!
//Extra Moose - Modern Web Design with Usability in mind.
I've used Steadfast before and never had a problem with their VPS and my friends always tell me good things about WiredTree. However, I know WiredTree is managed, and I think Steadfast is not. Either way, I think both are excellent choices.
WiredTree is absolutely awesome in all respects. I've only been with them for about 2 weeks, but my 384 VPS blows away my dedicated server that I just cancelled with PC-Core/BurstNET. I would assume that WT's network is more robust - my web sites now just snap into place.
I am most impressed with WT's support - "fully managed" really means fully managed, and I can now finally relax. Ticket response times are nearly instantaneous.
I am lovin' it!
BTW - check to see if WiredTree is still having their lifetime 10% off promotional.