I have nothing but Red in my Van(Milwaukee), and while the "specs" may be higher..... but, in real world...most MFRs numbers are bunk.
My Neighbor used to have the green stuff.... he borrowed my Milwaukee to finish his deck.... and went out and bought one....
I am NOT knocking anyone's tools or preferences... I HAVE to make a living using my tools... and need something that WILL take a beating. I was an auto mech back in the 90s... I liked my snap on stuff... BUT, I cant rely on being able to find a snap on truck... and I hate this new warranty crap they are pulling anyway... I tossed a ratchet at the last guy.... and walked off....
Honestly, you get what you pay for. I have been looking at the Milwaukee 18v 1/2 impact.... I wouldnt use it TOO much for work, BUT, it would get used... it would also get used around my truck/car.
Get what you can justify spending. I think with tools, you get what you pay for. I know people that LOVE the Ryobi stuff..... My father wont own anything other than Makita...
EDIT, just thumbed through the review.... eh, it is what it is.... I would still go with the Milwaukee myself, because, I have all the batteries, and charger, etc... Besides.... 450lbft is enough without justifying air...
Chase