Their web UI isn't as nice, I like their web UI better than GMail. It is cleaner than GMail and much faster most of the time. It's also worth noting that they

Their web UI isn't as nice, I like their web UI better than GMail. It is cleaner than GMail and much faster most of the time. It's also worth noting that they now have a beta version of a calendar (with CalDAV) support: http://blog.fastmail.fm/2014/01/23/calendar-now-available-on-beta-fastmail-fm-for-testing/ http://blog.fastmail.fm/2014/01/23/calendar-now-available-on... And they are apparently working on CardDAV.