I've been to several e-bike expos, along with Interbike and Sea Otter the past few years and ridden a slew of e-bikes of every variety. I agree that you'll get used to almost any OEM bike and it will be satisfactory for you. I have an early Haibike with Yamaha mid-drive, probably one of the least desirable, and it's fine (but not as much fun as my BBS02 conversion).