We have a 2020 Hurricane 29M and really like it. It is our first motorhome though, so not a lot compare it too. I looked online at the specs for the 2021 model and it looks like the fridge is electric only now, ours can go electric or gas. The floorplan is great for two people. There is very much written here about Thor build quality and we have had a few issues I consider to be minor, but others might call them major. I like to tinker so do not mind fixing and improving things myself. There is not very much "pass through" storage but I suppose the usefulness depends on what you have to store. The only thing I have that would not fit anywhere else is a telescoping ladder and it fits nicely in the pass through. I also put a couple of folding camp chairs there. Overall I consider the 29M storage to be adequate for us. There is plenty of room to overload the vehicle if you try!
After one year of ownership I would still consider buying another Thor if I was shopping again. I did a lot of research before making our purchase and the 29M floorplan is the closest to perfect for us that I could find from any manufacturer. We purchased it from General RV and have had a very good experience with them too.
I like to travel, but I also like to get back home.