Agree!
I have a few pain points, but have learned to navigate around them.
* Multi episodes. It will still try to rename something like S01E01-02 and skipping the much needed 02 part. I have needed to remove series where I have this from the list of series it checks. I know you can manually override, but that feels wrong.
* Language support is still a bit sketchy at times. Movies that have a Swedish name, I sometimes miss when searching, so I have to search using TMDB and then paste the Id in as a workaround.
* Matching has a tendency to find partial hits. Let's say there is a move called "war" and one called "war in the far east". Tryingto add the latter, I have seen that it take it as being the first.
I have no idea why, and I'm sure this would be a setting I could change in a setting file but the window where it has found a match, the columns are miniscule. Every time I have to expand them to see the name and the year. Here I would also like to see that I could double click the wanted option in the list for a quick add. That is the natural way, to do it for me.
But anyone can make a fork of the original and play with it. The license is Gnu so I guess anyone can continue on their form as long as it remains Gnu.