“Are there any reasons why I might not want the RS2? Is the quality and function there?”
I have the Rainshadow 1 and the double rainbow.

Rainshadow Pro:
1. A lot more space
2. faster to setup
3. Very easy to seam seal

Rainshadow Con:
1. More footprint needed
2. Walls go into my face a little in high winds.
3. Try to orient into the wind; no big deal until the wind changes.

DR Pro:
1. smaller footprint
2. two doors
3. two vestibles
4. Pretty wind stable in any direction.
5. The peak is in the middle; Makes it easier to sit up in.

DR Con:
1. takes a little longer to setup than the Rainshadow.
2. Of course there’s less space than the Rainshadow.
3. I struggled with seam sealing. I finally had Henry do it.

When I loan out these tents to our experienced scouts, I always get feedback they like the Rainshadow better because of the room. If I’m rooming with my dad, I would take the RS.

My wife prefers the tent peak in the middle so she doesn’t care for the RS.

Good luck on your choice.

-Barry