This is the best CRM I've tried by a long margin. All the facilities I wanted and more, really well put together and thoughtfully structured. There are even some useful plugins that add functionality too.
The knowledge base is super useful and full of content, and the ticket support system is a great facility that makes sure you're not left high and dry after the install.
Slick, professional and adaptable. Easily 5 out of 5 stars * * * * *