Hi:
I have a 2305 and have the Femco ROPS for the 2210 on it. It works well and I can't really tell you any negatives other than it doesn't look quite as rugged (due to not having gussets) as the original on the 2305 came with. I used to fold it often but not any more. Now I actually have a "Kool Cap" Canopy mounted on it. It's plenty strong for that.
One thing it has that's pretty cool are 'anti-rattle' wing bolts. You tighten them up when it's not folded and it put's tension on the top part so it doesn't rattle when it goes back and forth just a tiny bit.