There seem to be quite a few of us who are on the hunt for our 1s e-bike who find all the options daunting. Count me in that number. After 3 months of roaming multiple websites I still haven't made a decision but have come to several potentially useful conclusions for those 50+ age folks in the search who just want nice bike that will help them ride a bit longer, further, get up the steep hills without dismounting and are not comfortable doing a lot of our own wrenching ...
Regarding torque vs cadence sensors -- hot topic. But there definitely seems to be a trend away from cadence to torque sensors. Both work fine.
There is no substitute for a test ride! Buying a bike on line that you have not ridden in your size is foolish gamble. Who wants to unpack a bike, assemble it, adjust it, ride for a week only to learn it isn't right for you then clean it so it looks like new, repack it, take the giant, cumbersome box to shipping drop off, pay the freight, (and in some cases a restocking fee)?
Of course buying local will limit your options but most will still have lots of options. Its worth spending a day, driving 3 hours if necessary, to a bike store that stocks a few seem to meet your criteria. Most bike shops will let you take their bikes for a half hour or longer ride. Get it adjusted for you, get out there and pedal for half hour. Then try another one so you have something to compare with.
Once you have picked your bike, take advantage 14-30 day trial periods most all manufacturers offer. Ride you new e-bike a lot the 1st two weeks so you know if you made the right choice. If not, take it back (no need to rebox it, pay freight...)
.
After sear surveying the e-bike landscape, reading hundreds of reviews, and riding half a dozen bikes I have a strong impression that Aventon makes quality, reasonably priced bikes that will fit almost every average Joe & Jane's needs and they have a broad network of local shops (over 1000), So does Trek but a comparable Trek will cost almost twice as much.
My problem is that after having ridden 6 different bikes, I found that while they were different, I like them all! Top ones for me (looking for bike that will be ridden 80% on roads, 20% gravel / trail, weighs less than 45 lbs & will fit in the back of my Kia Niro() are the Aventon Solera.2, Trek Dual Sport +2, and Propella 9S Pro V2. The bike that looks the best to me on paper is the Velotric T1-ST, but so far I haven't found one locally, so that is holding me back. Also I can still hop on my Specialized Sirrus Carbon road bike or my Specialized Pitch hardtail Mtb so I' m not in a rush.
Happy peddling!