I have put in about 10 hours on a demo XZ with the 30 horse V motor. This is a nice machine with excellent cut quality. My other mowers include a 260Z and a 144Z. I also use a Toro 36 WB. The Gravely XZ is not without it's quirks as are most new products. The 30 horse V idles quite differently than my Kaw powered Gravelys. Large clutch power requires the engine to be up to high idle for blade engagement. The engine throttle controls around 70% of the power in the last inch of control movement. You operate this machine at full power. The two trailing wheels leave a slightly "confused" striping pattern and can make it a bit of a challenge to sight overlap until the operator gains experience. The mower has two large plastic "fenders." Only the left "fender" is a usable fuel tank. With only one tank a reserve style petcock should be installed to avoid the "walk of shame" for fuel. At full power the mower burns approximately one gallon per hour. The right "fender" provides mounting for the control panel. I keep using the term "fender" because the 260Z has a similar control panel setup but utilizes the empty "fender" as a second fuel tank. I have pulled my 260Z control panel, the XZ controls while more extensive do not appear to penetrate the "fender" or "tank," more fuel capacity would be appreciated. The controls are mounted too low on the panel for my operational style. I have on more than one occasion knocked the key to the off position with my elbow during operation. This trick has been duplicated by every other operator, especially when maneuvering tightly around pine trees. The mower features a weight transfer control system which utilizes an advanced computer to continuously adjust the weight balance point to optimize traction. Gravely requests that this feature be left in the "on" position, so it might be beneficial to move those controls fully aft on the panel to get more room for the key/run switch and move the blade engagement/stop button up/outboard for better access. The front mounted deck is a joy to mow with, the hydraulic power is well balanced with excellent control response. Raising the deck for service is another shortcoming as a pin mus be installed and then the deck does not achieve a vertical position. This is a long mower, nearly 10 feet and trailer space will be quickly consumed. Deck height adjustment is quick and effortless with the touch of a rocker switch, I would prefer a settable stop however to assist with precise return to desired cut height. You ca quickly raise the deck to cross a curb then you must reset the height via a rotating wheel on the deck near the footrest. I really like the perceived quality and durability of my current Gravely mowers, and my dealer is the absolute best. I do think the XZ should be a more complete package given that Gravely in coming late to the outfront party should have been able to capitalize on every other brands best features. This is a nice mower that is exceptionally productive, I just wonder if version 2.0 will have resolved a few of this issues. Diesel is rumored to be in the offing. On a final note this mower was equipped with bar tires which I found to be of no major significance in hill climbing, slightly detrimental on cross hill traverse, but better during "zero turns" in the yard. I appreciate any feedback you might have.