While my 657 was in the shop for a replacement of a hydro I demoed a 757 with a 60" deck. I also had a chance to try out a friends Z-master. I've owned the stander for two years so I thought I'd share my thoughts on how the machines differ. Pros of 757 1. Wider track means grass gets cut faster. 2. The wider tires (12") compared to 8" on the QT means better traction on hills--a HUGE difference. The worst I could do was lift the front tire a little and it still laughed at me. The rear tires didn't move from the hill. On the same hill, my QT bounces down the hill sometimes. 3. The better tires also means less rutting and less tearing of the grass. 4. It's hard to scalp with this machine. In fact, I couldn't. On the QT I have to be careful. You can be careless on the 757 and still not scalp. 5. The cut is better than the QT. With the QT, you see tire marks. Not so with the 757. 6. Overall it seemed like a beefy machine. 7. I was able to go across a hill instead of up and down it. This is a big time saver compared to my QT. 8. I was able to make faster turns than my QT due to the wider tires being less apt to tear the turf. 9. Overall, this machine is faster than the QT. Cons of the 757 1. 25 HP motor doesn't seem as powerful as it needs to be. RPMs go lower in grass that my QuikTrak (QT) would stay steady. (My Qt has a 23 HP Kawi and a 54" deck.) 2. It Jars the heck out of your innards. My boobs were bouncing as much as my liver was. (I think they are an inch longer now.) With the stander, my legs take the shock. I'd much rather ride the stander all day versus the 757. (I really wonder if all that jarring shortens one's life.) 3. The controls seem to require more force than they should--more than the QT (or the Toro). Caveat--maybe the force slows you down and helps prevent tearing of the grass. 4. I was very disappointed in the grass clipping dispersal. I figured JD worked this problem out with the 7-iron II. They didn't. In dry normal grass (for Vermont) after 8 days between cuts, you could still see the grass clippings. It looked messy. 5. I did like the steering controls better than the Z-master. The Toro's controls were touchy and required intense concentration compared to the JD. 6. I didn't like the height control. It seemed like a kids toy. I like the Toro's better--seems like a real commercial tool. Odd--the residential JD Easytrack has a height control similar to the Toro's. 7. JD STILL hasn't figured out how to design a deck that stripes! The guys who have Bobcats will laugh at this machine. 8. JD needs a chute blocker on this unit to keep the clippings out of the mulch beds--and off cars. (Maybe like the mulch on demand they have on other units.) 9. I didn't like the wheelie I pulled going under a branch. (Yes it was a ROPs problem.) 10. I didn't like the wheelie I pulled putting the 757 on the trailer. My QT would never do that. I had to back the 757 on the trailer instead of driving it on straight. Summary Overall, if given the choice betwen the two, I'd probably pick the 757 over the QT because I could get the job done more quickly than my QT, get a better looking lawn, and have the possibility of getting a better grass collection system than the QT's. I would definately choose the 757 over the Toro. However, I would seriously consider demoing a Bobcat with a good seat or a Ferris with a striping kit. In short, the 757 is not my ideal machine.