I think the mid drive is better overall, feels more like riding a normal bike and being able to have full use of the motor in every gear is beneficial. The front wheel motor works just fine though, can feel a bit odd having power coming from the front especially on a long John..
Few upgrades, installed a battery powered front and back light kit (w/ horn,brake light & turn signals!) from eBay. Pretty impressed!
Also installed side panels using brackets that @moocher very helpfully printed for me!