My opinion on the Navigator- I dont like it. I put about 6 hrs on it Thurs and Friday. Biggest thing I didnt like were divots EVERYWHERE. It is because the drive is extremely jerky. IMO the deck was way louder then it shoulda been, think something was messed up there. The deck was WAY heavy and a major PITA to adjust the height. The grass catcher door seemed to randomly shut if you tried to leave it open (like, oh, for cutting knee high bermuda grass), and that is kinda a pain. I WAS quite amazed at how well it knocked that down. Didnt plug the chute, only plugged between the deck and blower once. In two passes, the yard looked great (except for the divots everywhere). I also liked the fast top speed for getting back to the truck to dump, or driving half way around the block to the front yard of a house (park rig in the alley). Overall, not too impressed. Definitely going to demo a Walker next week.