So far, I'm finding it an amazingly useful plugin/service, with a great intuitive UI. I've never felt the need to use any "manage" services because they tend to add overhead in terms of time, rather than remove it. But several features work really well for decreasing admin overhead - the ability to control spam/approve comments across multiple sites and the scheduled backup feature has been a real time-saver. Everything links up well e..g. backing up to Dropbox "just works" which is nice. The 5 free site limit is appropriate, I feel as well. The Reporting feature for my individual "clients" is another nice feature. I don't have anything negative to say about this plugin at all. Well done!