What a relief, Remotex.
Since Mavericks, ARD has been a pain. It forgets servers in stored in lists, shows ridiculous latency over slower connections, won't launch and then starts searching for updates which are not there, bonjour scanner is broken, it won't connect to Windows PC's running TightVNC anymore, etc...
I've only been using Remotix for a couple of hours now, for now I'm quite happy.
Nitpicking: I kind of miss the ability of dragging computers from the nearby list directly into categories.