I'm a necomer for BenelliUSA, so first Hi from all Russian BenelliUsers:D
I have SAT8 as well as M4 and can compare them without any problem. SAT8 is a good weapon (cost/effective) as in Moscow it cost 45K Rub vs 77KRub for M4. (1Usd - 24Rub)
I made about 600 shots from SAT without any problems (mainly slugs).
Funny, the first thing you feel when compare M4 vs SAT in hands, is weight! M4 heavier, and give you good feeling of quality, also I like mechanical scheme of M4 more -easy and simple very useful!
The only SAT8 negative, is linked with it's Knoxx stock, looks like item from toystore, no comparsion with M4 metal skeleton.
If someone interesting, i can post photos of both rifles.