I own both the carry handle version and the new flat top version.
First off, like any 22 you need to find the ammo it likes. If anyone tried mine using win 555 or dynapoints. I bet theyed throw the gun away! I tried over 9 different types and dynapoint grouped the best but jammed the worst. American eagle and stingers worked great. However the cost of the stingers made me choose AE. Yes the gun is plastic. Yes it's cheap feeling. However it is a cheap gun. Almost half the cost of the SR-22. So what do you expect, metal, I don't think so.
As for the cleaning, the screws suck cause they go into plastic. So yes you aren't going to be cleaning it every time you shoot. However I put about 800 to 1200 rounds before I have to fully clean it. Between cleanings I run a snake down it. Works great.
As for groupings, in a vise I'd say 1" groups @25yards and 3" groups at 50yds. Worse if you're shooting offhand. However this gun is for short range. If you want a gun that groups 1" at 100 yds, please buy a bolt action. I have the Savage BTVS and it's AWESOME!!!!
As for the Mossy, it is what it is, Plastic and cheap. However it groups as well or even better than my friends SR-22, IMO.
My friend bought a bull barrel for his SR because my mossy outshoot his $600 gun. HAHAHHAHAH
JUst my 2 cents worth.