I wouldn't call it junk. I have both the Mossy and 15-22 for my son. The mossy is much like a dressed 10/22 in cosmetics. (A plinkster in a AR style stock) it shoots flawlessly and has been reliable for my son. For an under $300 rifle it has done good. I prefer the 15-22 as does my son for the AR similarities in function but the Mossy has served it's purpose.The mossy is junk. I haven't shot one but, I have held several at different shows. My brother almost bought one until I let him shoot my 15-22.
He went out and bought that instead and has never looked back. Besides, it's a GREAT training platform for your AR. All the same controls, unlike the colt or mossy. Add a slit bit of weight to it and set it up just like your SHTF AR and you're good to go.
That is what both me and my brother have done. 4-7 cents per round vs 60-1.00 per round while getting almost the same shooting experience minus the slightly heavier recoil is pretty good.