Just took my first-ever test ride on an ebike (the Trek FX+ 2: https://www.trekbikes.com/us/en_US/bikes/hybrid-bikes/electric-hybrid-bikes/fx/fx-2/p/35842/?colorCode=black)
Overall I was impressed. The electric motors and such didn't add as much weight and bulk to the bike as I expected them to. It was light enough to be pedaled without turning the electric assist on at all. The controls were appealingly bike-y -- no digital screen, just a set of LED lights showing the charge level of the battery and current level of assist being applied.
I'm told that this bike is pricey for what you get, but my current bike is a Trek and it's run like a tank for nearly 15 years, so I feel a little more confident about build quality than I would buying from a startup with no track record.
I've been dying to upgrade my bike for a while now. Still not sure this is the upgrade I'm going to finally bite on, but I'm more tempted than I was before the test ride.