I mean, it's not perfect; I just thought that IDA does many of the same things that Ghidra does wrong but with a somewhat less forgiving UI. You did hit on some of the issues I've had with Ghidra, though: I agree that the way to create structures requires a lot of overhead and while I don't deal with anything too large, I kind of wish that Ghidra would collapse runs of "undefined" and only expand them if you clicked on it or something like that. If it annoys me enough and I ever get the time I'll see if I can file a pull request for these things.

Actually, overall I think you've pretty much nailed the issues with Ghidra: it's a bit slow and clunky, and its UI sometimes does the stupidest and most infuriating things, such as truncate instructions. But its saving grace (at least for me) is that usually it's easier to figure out how to do what I want in it. It might require a few extra clicks or confirmations but if even if I mess up I can usually rely on undo working right, while I would always be scared of messing something up permanently with IDA and not being able to go back…