I have done that commute on Ebike and on regular bike for 11 years, it is do able both ways, but If you want an Ebike I say go for it. The mid drive kit from Luna is more dificult to install and may limit your bike choices. I have have heard good things about both vendors. The prices are similar.
The Ebike kit battery will get you 20 miles, and I have had good experience with those geared hub motors. If you find yourself chugging on a major hill make sure you pedal assist it up the hill.
I really like the 48 volt battery with a hub motor, I have been riding that combo for many yars, I have no experience with the mid drive.