The very first project I tried in godot was a port of a little game I'd made in love2d. It had a lot of entities that had to find paths to other entities. In lua, it was trivial. In gdscript, it was unacceptably slow. I tried godot's built-in pathfinding, but it was even slower for this case. I got around it, but it took some ingenuity. I'm not sure I would have found a solution as a new programmer.
I've worked in C/C++ before, but I don't like C-like languages. I get a lot more done with python and lua, so C# is not an appealing option to me.
Talking about this has really got me eager to see the new changes. Unfortunately, the master branch has still got so many bugs (on my system, at least), that I can't make much progress. So far, I haven't had to change much of the code in the project I'm trying to update (but I haven't got it to run yet, either).