I picked one up last night and charged it up right away so I could give it a "test drive" this afternoon on a single charge.
SO HERE IS MY REVIEW:
1)Dodge Charger SRT lug nuts torqued to 100#..... Could NOT "budge" them.

2)Ran twelve 3/8”x6” lag bolts into a tree..... NO problem with power to spare.

3)Remove 8 lug nuts from Kubota BX tractor..... NO problem battery starting to loose power.
Disappointed with the "fake" torque specs but at $99 I will keep it for work around the farm without being "tethered" to a air line. The tool seems well made and balanced so it is comfortable and easy to work with. It is too big to get into "tight spaces" but I have smaller pneumatic impact guns to do that job in the shop.
Basically this is a $99 tool and you get what you pay for but for the "DIY/Homeowner/Small Car Owner type of Guy" it is a must have tool to save time.
Professional/everyday mechanics should avoid this tool because you will be disappointed.