I have been using a yescomusa 1000W 26" rear kit for about 9 months, totaling roughly 1500-2000 km. Stock controller has the ability to do regen and cruise control if you solder those parts to ground on the board. I enabled regen and it works wonderfully as a nice smooth brake. Never enabled CC. I was in a sideways collision and have had a slightly tweaked rim, and one spoke nipple was stripped out. I really like the tire as it has lasted longer than my Schwalbe marathon plus 20" front tires, although they all need replacing at the moment, so I guess you might expect a similar lifespan from the tire.
As a comparison, I live near another user on this forum and have been able to drag race him to see what the difference is between the motors he has tried. He used a goldenmotor, a Crystalyte(the mid range one), and most recently a 9 Continent, ran at higher output (1500W peak on mine, ~2100 on his). I beat him until about 25-30 mph. Tonight he had upgraded to 72V 40A, so nearly twice the power, and we stayed even for the first ~2 seconds, with him pulling steadily away thereafter. His motor is much quieter though, the yescomusa has a heavy grunt sound of power with an odd "whump" felt
In short, my Yescomusa kit rocks! I do need to upgrade my wires though, as the phase wires have gotten hot enough to melt the styrofoam in my seat, since I run at full throttle (30-31A) all the time. It also handles 7-8% grades fairly well at speed, but struggles from a dead stop. And, the motor and controller survived through the neverending rain we get here for 5 months without any hiccups.
Build link coming soon
Terratrike Rover, 1000W Yescomusa kit w/ stock controller, 16S8P 26650 A123. Top speed 31MPH. 10,000+ miles to date.