We have a 303RLS 2020 we both love it except we would really like a King size bed, more closet space and a little more kitchen room. So here is the problem.. we both really like the 337RLS.. but is it really more roomier than the 303RLS?? I'm having a hard time wrapping my head around trading a perfectly good fifth wheel we camp in to up grade to the 2024 or 2025 just for a little bit more space.. I need opinions and advice.. Ours has the carpet still under the theater and dining room and in the bedroom.. the new ones don't. If you don't have the carpet do you like yours? Any input is welcome. thank you.

Dear Space Traveler,
We have the 337, and looked at the 303 (2020 models) before acquiring the former. Some points:
1. Carpeting - doesn't matter. I have it, and actually like it underfoot when sitting at the dining table. Easy to vacuum - we keep a stick vacuum on hand.
2. Room - the front closet on the 337 much bigger than the 303 slide out closet - dresser. Much more storage space in the bedroom. This was a big deal to us.
3. Bigger basement storage on the 337 - also important to us.
4. This has not mentioned but to me is very worth it - the bigger shower. Instead of the radius shower the 337 has a 4 foot long shower which I love, especially at 6' 2" tall. Because of this, they subtract the door to the bedroom that the 303 has. Don't need two bathroom entries.
5. Queen vs King - ok, so I am a big guy, missus is not. Still, would MUCH rather have the extra side room with a Queen bed than the King. Yes, have a King at home, love it, but don't miss on the RV. Staying with the Queen in the 337 gives you better side room AND you get the small ledges to hold your book/tablet/phone next the the bed.
6. As Rob mentioned, the 337 has a bit more pin weight to heed. Rig is a little longer at around 36 ft, but to me negligible issue.
7. Not sure if you have dual A/C's, but highly recommend.
Overall - gaining these advantages vs the hassle of selling the 303, pricing and acquiring a new rig, etc only you can weigh out. You have a nice unit either way.
Carl