Just wondering. I know they're a cheaper brand, but are they only good as paper weights or are they hidden gems? only reason i ask is cause i was shopping the "hot new releases" section on amazon and saw this http://www.amazon.com/Campbell-Hausfeld-NF349099AV-Cordless-Lithium-Ion/dp/B010P7ISAG/ref=zg_bsnr_551236_1