One word describes all - Excellent! (after it you can add words like - sales, price, support, uptime, speed, etc.)
Best thing about Hostingsource.com is the Instant activation ans their tech support. The chat feature enables me to clear all my queries and doubts.
Their installation of Open Source Applications and support is excellent and they set standards for customer support!
Their rates are really affordable and you really should take a look at them if you want to create a site or transfer from an old host!