I like the KO and Onside kick rules a lot

Don't like the no PAT (I would Prefer the kicker have to kick from the 3yd line directly behind where the ball broke the plane of the end zone).

I also think the 3pt conversion is pretty goofy. But still you probably have to try a couple goofy ideas to find a good one and it seems there hit rate is 50/50, which is actually quite good (75/25, depending on how one feels about PAT rule, I think they identified a real issue, but their solution wasn't much of an improvement). The 3pt conversion seems like a solution in search of a problem