I have found the crew at myhosting.com to provide excellent support.
As a 30 year network engineer running multiple Linux mail servers; When I need support, I am usually in pretty deep. Most recently impressed with Givin G. Who worked hours to nail down an rdns ptr issue I have been having on a multi IP mail server. I have only been with them about 2 months, but so far I can say I am very pleased.
Keep up the good work folks!