It suddenly, for no apparent reason at all, stops working until it is reinstalled. Messages are marked as being successfully sent, but they're not being received by the recipient. All my friends have the same issue.

Since it's only on Android I can't use it as the single app for all messaging. I certainly type much faster on my desktop keyboard than I do on my cell phone, so I need something with desktop support too. A lot of my friends also have iOS, which also is an issue.

Telegram's crypto is pretty weird, and potentially insecure - no doubt. However, it's the only messaging app I've found with good clients (superb in fact) on all platforms that has some level of encryption. I don't "need" (although I would certainly prefer) to be protected from targeted attacks, I need to be protected from mass surveillance.