Well... seems like Frey owners are satisfied with their purchases so I wish you the best of luck.
I'm already wary of Internet-only shops which is why I recommend only reputable places but at the $3k+ price point, I'd really look at something from an LBS. What was wrong with the Biktrix Juggernaut FS? Or that Evelo I linked to?
Evelo was interesting (did not like the visible battery look) but I really liked the look and design of the Frey CC. Seems like for the $$, you get some rock solid components and I even added a dropper seat! It seemed to me the best bike I could get for my needs that came with a throttle for under 4k. I love the look of the Bulls Iconic and Trek Powerfly, but no throttle. The throttle has already come in handy on several of my XP and Sport rides...