So back to the topic at hand, there is a group discount code available for EMW JuiceBox products (which I believr all by now have GFCI )
If you like a low price, no frills, long cord, metal box EVSE, my 1st month of use generally validates the 30A (7kW+ Is enough for a 6.6kW 2013-and-later Leaf L2 charging) but some may pay 2% more to get 40A (seems like a fair bet--I don't recall the price being that close to the 30A)
I also recommend buying direct from EMW to get more certain shipping speed (than Amazon quoted) and customer service
If you like a low price, no frills, long cord, metal box EVSE, my 1st month of use generally validates the 30A (7kW+ Is enough for a 6.6kW 2013-and-later Leaf L2 charging) but some may pay 2% more to get 40A (seems like a fair bet--I don't recall the price being that close to the 30A)
I also recommend buying direct from EMW to get more certain shipping speed (than Amazon quoted) and customer service