Yes It says 1.35 Hp in the add, I just find that hard to believe. I would think the add is wrong and its a misprint. There is only one way to find out buy it and see what is in the manufacturersspec sheet.
To me its sort of like buying a VW beetle with a 500 hp. engine. Not likely but possible.
The add says it can grind meat @ 2.6 lbs/min Which is in the range of a 400 watt grinder at Cabela's($70) 2 lb/min a similar looking grinder.
Cabelas rate their 3/4 hp @ 4-6 lb/min, 1 hp @ 10-12 lb/min, and their 1.5 hp @ 15-18 lbs/min

Something just doesn't seem right.