The ease in which you can manage multiple accounts from one dashboard is great! I love that they have an app for android as well so its very simple even when away with little internet access (which happens quite often).
There are some features missing such as being able to add custom TLDs but this isn't something i'm too bothered about atm because all my sites work fine without them anyway :) Great service overall - highly recommended!! No real complaints other than maybe there should be better integration between webhosting providers? We've been using hover since we started our business almost 2 years ago now & haven't had any problems whatsoever.