Worth adding that “the developer” is @vlads who towards the end of Coronalabs was the only active developer working there. He knows this product inside out, is generously funded by a number of community members, and is very active on the Solar2D Discord.
This isn’t just a community fork of a product that once was, it’s more a rebrand by the same developer who was already building it, except that as an open source product we can all help in certain areas. Some people are submitting code updates, others are working on the documentation, others are backing financially. There’s even a Linux fork happening. We’ve replaced the old marketplace too with https://www.solar2dplugins.com so developers can still share, or sell, their work despite the old Coronalabs marketplace becoming defunct.
The problem we had under the Coronalabs label, towards the end at least, was a lack of communication. They were very quiet about how many people actually worked there and how financially successful they were/weren’t, and they were reluctant to give lead times on a number of developments. This all led to concerns that they wouldn’t be able to hit Google/Apple API change deadlines, or that they’d one day just call it quits and abandon the product. This is what Vlad and the open source move has fixed. Everybody is happy bow, because we know exactly what the situation is.
Definitely give this framework your time 
Developers from Corona SDK days are still developing and releasing their projects with those new releases so it’s still reliable as it was before.