I don't think there have been any damaged cords in 5 years since we installed our first EVSE. The failed Eatons all had internal failures of one sort or another; swapping out the EVSE (replacing it with a Schneider) was the solution. Some of these are in use 8 hours a day, 5 days a week. Also, all these units are going on their own circuits (I don't know the details, but the cost of the installation is several times the cost of the EVSEs themselves).
WattZilla doesn't seem to sell anything less than 40A. They were considering the possibility of some 40A units in this new section, but they primarily wanted 30A units. But I'll forward on the link and highlight the Wall Wattz (which is what I think we would want).
Similarly, eMotorWerks only has the JuiceBox in 40A. (we don't want the pedestal mount, though; our first two EVSEs were pedestal mounts, and the installation costs are far higher). Will these just work without WiFi, as we have no need for authorized users or monitoring/billing?
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi, AHr 58, SOH 87%
Tesla S 75D (3/17) 29K mi
Tesla X 100D (ordered, 12/18 delivery) (replaced 3 reservation)