The Sutra is not a bad bike, but it's not an ebike; if you're looking for a Bafang conversion project just shop bikes direct and go from there for best bang for the buck, imo. I personally ordered the Current because I wanted to try frame integrated motor/battery components, torque sensing Bosch or Shimano setup - which Kona does have a competitive model in the Kona
Dew-e DL Libre EL*(e: got the models confused, Libre EL is the comparable Kona gravel bike @$4699), but it's not an all-market bike so it's not really possible to get one for all of us (as I tried to order one of those
first in fact

), where Diamondback is supporting customers in the entire of the US, one of the few or only Bosch integrators to do so. Bikes Direct has quite a few Shimano Steps equipped bikes that are true all-market/entire USA bikes as well. Tong Sheng/Bafang does have that TSDZ2 conversion system now which is supposed to be torque sensing, but I've not tried it - I only have half a dozen or so of the BBS02/HDs conversion bikes. If you are in the market for a diy conversion though, you're in a very different market segment.
I
am however hoping to have some more ride reports for you all after a few hundred miles of testing on the Current!