Love the new self propelled mower with steel deck. It's everything I hoped it would be, but would suggest some changes on future designs. I adjusted the height on the mower one time when I first got it and would expect to not change the height again. Your height adjustment system is easy to use, but I suspect the springs, arms etc are expensive and will lead to maintenance issues/ deterioration in the future. Perhaps a newer model option with less expensive, more labor intensive, less intricate height adjustment for a user who would rarely need to change cutting heights. For safety reasons, I would suggest that all functions of the mower shut down when the safety bar that shuts off the cutting blade is released. I didn't realize the propulsion handle would start the mower moving even though I thought the mower was off until I happened to depress the green handle while relocating the mower and the next thing it started to move. Was quite surprised and could have run the mower into something or somebody. Now I know better, but when the battery is in it's primed to go. I expect there was some debate in how to handle the shut down functions with the various bars and levers on the self propelled model, but in my opinion, safety bar should be depressed for all functions to be activated.