You've had a good experience and thats great. You're not alone. For the light riding you are doing (1650 miles annually) you're at a good spot with that bike. I put 4000 miles in the first year on my first ebike, and that was down from my pre-electric peak of 11,000 back when I was a lot younger. I'm only around 6000 now. When you start riding higher miles and not for recreation - particularly in regular bad/wet weather - thats when component quality starts really meaning something. My 11000 mile per year bike had all hard surface anodized parts, sealed bearings everywhere, wheels made to take a pounding etc. etc. When I retired the bike (graduated and got a job and bought a car) it had over 40,000 miles on it. And I don't deserve any medals for hard riding. Loads of people do a whole lot more than that.
You're more likely to have a better experience if you spend a little more. On the Rad Rover I would specifically call out the mechanical brakes (in 2022 they have finally fixed that), the spring fork, the small battery (whose capacity they refuse to report as amp hours and instead give a watt-hour range... and a range with quite a variance. It calculates out to you might get a battery as small as 12.3ah or as 'large' as 14ah). The 500w motor inside of a casing labeled 750w is an infamous fudge. Are they still pulling that? Its a meaningful difference as the true 750w Bafang G060 motor is known to be overbuilt and can be expected to last forever, whereas the 500w version can be smoked if its given a long enough hill to climb - A few Sondors owners did that in fact to their 'X' models with the 500w motor labeled accurately.
It used to be the Sondors bikes could be directly compared to a Rad Rover and the lack of value in the Rad product would be enormous by comparison (hydro brakes, air fork, 17.5ah battery (840 watt hours), genuine 750w motor. 25a controller), but Sondors prices have gone thru the roof, where once they were less while still giving way more. No longer, sadly.
When a company pulls something like the motor mislabeling, as far as I am concerned they can never be trusted again. Especially given how they defended their actions when called out more than once on it. Knowing this past history of behavior, it also means they don't get the benefit of the doubt anymore when odd choices like dropping the ah size (and making it a range!!) happen.