Overall it looks promising. Upgrading however from 0.17.y to 0.18.0 went unsuccessful for me. Ended up simply starting over from scratch. Thankfully the instance did not have any noticeable content anyways yet so the only thing lost were two days of headache. I am looking forward to get it more reliable since potential is certainly there.
Cheers
I assume there was some random regression introduced with 0.18.0 which has been fixed in one of the newer 0.18.1-rc pre-releases but not sure.