Its a Bob-Cat Predator Pro with the 33 HP Genaric engine and 61 inch deck. I also ordered it with the Boss Vac. So far I'm very impressed with the mower. Its like mowing with a cadillac. Its the comfortable seat along with the controls. You just think and the mower does it. There's very little vibration from anything, even with the vac going. The mower is built very solid and heavy duty. The fit and trim is very good too. The Boss Vac is heavy duty just like the mower. The Boss Vac seems to work very well . I like it much better then my Protero vac. I mowed through some thick lush wet grass and it didn't clog. It sucked up every bit of it. It loaded up all three baskets chock full, and that is a lot of grass . Each basket is about 50 pounds a piece when loaded with damp grass. I didn't mow at full spread with the vac, but I wasn't creeping along either. The vac is also easy to empty. You just slide the baskets off the support rods after you lift the vac lid. The only problem I have with the vac so far is taking the unit off the mower. There's a bunch of pins here and there that are hard to get too. With vac system off , the mower cuts very well, with out clumping so far. My older Bob-Cat clumped where this one doesn't. I even went fast a few times and it still cuts very well. That big 33HP engine really does some work with out slowing down. It also lays a good stripe just like my older Bob-Cat ZTR. Iv mowed with the Predator Pro a half day so far and i'm impressed. I would, so far highly recommend this mower. It even comes with a beer can holder built into the left hand gas tank.