Not OP but for me it's a solid remote desktop alternative that can compete with Windows' remote desktop experience. There's been some movement there, so perhaps in 5 years time.

Also I really dislike how out of memory conditions just causes everything to grind to a halt for 5 minutes before something, typically Firefox, crashes. On Windows at least just Firefox gets very slow, but usually I can just nuke the process that eats too much memory. Not so on Linux as the whole desktop becomes unresponsive.

And every now and then I still need to fiddle with some config files or whatnot. Not game breaking but annoying.