Still on 1.2.1 (Build: 2384) without major issues.
Happy with the way my Obi currently is set up.
If I update to 1.3.0, will I have issues?
That might depend on what features of the Obi you are using. If you are still on 1.2 and not having any problems then you are probably using a plain vanilla setup because there were issues with some of the some of the advanced features in 1.2. That said, I have been using 1.3 for a couple months now and all of the features I use are working fine. Currently on 2586.