I have the KBO Breeze and it's been great. I ride almost exclusively on paved trails and roads so no fat tires for me. Like you, I have to have a throttle for several reasons but mainly I view the throttle as a safety feature. A throttle makes the bike easier to maneuver it tight quarters and helps with quick starts at traffic signals and crossings where cars are waiting for you to cross. The 500W/750W peak motor is plenty powerful enough. The 16ah battery gives it enough juice to ride 50+ miles with minimal effort on your part. I've only needed customer service a couple of times and they responded nicely so no complaints there. I replaced the display last week and that gave me a color screen, battery percentage left, clock, 9 pedal assist modes and a higher top speed. I don't need the higher top speed but it's nice to know it's there if I need it.