From SolarVPS's own site: "Solar VPS was formed in early 2005 to provide business users with cost-effective, efficient and sustainable hosting solutions. We began as a managed Windows Virtual Private Server business and partnered with Parallels (then SWsoft) to offer its newly released Windows Virtuozzo to customers. By adding the managed services aspect, we were able to create higher customer retention as well as maximizing revenue. Not only did Parallels provide an optimal solution for client service offerings, but it also enabled us to virtualize our office file servers and management systems. This allowed for lower power consumption, lower capital expenditures and increased manageability. Use of virtualization software and VPN connectivity allowed us to build a truly virtualized office and data facility network. Communication was spot-on with every member of our team and with our customers. Knowing what was going on and being able to handle any problem became truly functional through our virtual infrastructure."
Negative Review By: David J. at http://hostjury.com/reviews/solarvps
"SolarVPS is one company that I wouldn't recommend utilizing. Not only are their pricing models uncompetitive with other better vps providers out there (PowerVPS to name one) but their support plays ignorant with billing cancellations. After using their service for a few months and canceling off, they sent me to collections over a single unpaid invoice of $40 odd dollars but decided to add some silly $150 odd dollar fee on top just for kicks. Cute, I must admit."
Positive Review By: Tom Rayner at http://www.vpsreview.net/review.php?id=7
"Being with SolarVPS since June 2007 and have had no problems. Have had no reason to contact support, so unable to say if it's good or bad. The service has run perfect from day one, what else can one say its working just right for us. We are satisfied with the service."
For all but the most insanely high-traffic apps, the best Ruby on Rails hosting solution these days is a combination of Amazon Web Services, Heroku, and a shared host like DreamHost.
This is because you should serve all your static assets from CloudFront and use SES for outgoing email. Your application layer should sit on Heroku (until it becomes crazy expensive), and your inbound email server, domain redirects, and miscellaneous stuff should be on a shared host.
TIP: use the promo code RHPROMO to get $30.00 USD off at signup with DreamHost.