Everyone on HN has been suggesting GoDot. I have also spent lots of time with Unity, but recently spent about 5-10 hours playing around with GoDot. Some thoughts:

- I strongly dislike the name and logo

- It feels very foreign at first, but easy to pick up

- It appears to me that it is production ready

- Migrating an existing unity project would be an absolute nightmare

- Publishing to consoles looks tricky, but I haven't been far down that path yet

I am going to be spending more time with it now, because I have been growing less and less happy with unity over the last 2+ years. The proverbial straw has now found it's seat upon the camel's back