"I have used Thinderbird for a very long time but decided to uninstall it today. In general I find it just fine. But I don't think the interface is very user-friendly and on top of that, what drove me away for good are the bugs. I get a lot of "An error occured" popups, but I also lost half my inbox today because something went wrong with setting up filters. I lost some very important email in fact so I am kinda dissapointed about that."