Why I did not choose Cwicly for my next big project…

For some basic use by clients/editors they are probably fine, although they have known limitations (like not being able to delete/add blocks directly from the navigator, etc).

For templating and developer use, they are mostly redundant now that we have Grid layout on any block.

From my view there are only two things that are must haves for this:

Fix the drag preview positioning:

Add support for multiple selection:

Other than that I don’t see any stability issues.

Which parameters are you referring to?