I'm very pleased with the product.
It's easy to use. No phone app needed to control it.
Very good value for the money.
Build quality appears solid, no failures or problems so far in the past several weeks we've owned the charger.
The charging speed is exactly as expected from the listed product stats.
It provides session charge info on the front panel of the charger, if you're interested.
We use this charger in combination with an inexpensive $20 adapter to charge an AWD extended range Tesla. No issues or problems with doing that. The car interfaces with the unit seamlessly.
A couple of notes:
Make sure you know the amperage rating for the receptacle (outlet) you plan to use and set the unit to not go over 80% of that rating, or you will have tripped breakers. Just look at the breaker for the outlet and read the number.
For example:
When plugged into a NEMA 14-50 (50 Amp) receptacle we set the unit to its max charging rate of 32 Amp.
When plugged into a NEMA 14-30 (30 Amp) clothes dryer receptacle (by using an adapter plug/cable) we set the charging rate to 24 Amp. (80% of 30 Amp = 24 Amp)
No problems with either scenario. No overheating or tripped breakers.
While the unit comes with a NEMA 14-50 plug as standard, it will NOT deliver 40 Amps of charging speed. It is not meant to. Bear this in mind when considering the unit. If you REALLY want 40 Amps of charging speed look at a different (and more expensive) adapter.
However, we have NOT found the 32 Amp max charge rate, or even the more limited 24 Amp charge rate (when charging from a clothes dryer outlet) to be a significant limitation in getting the car charged fully, in a reasonable time, while it is parked at home. Even with the battery down to 10% it will charge to whatever level you set it to long before the night is over. For our daily needs it's usually done within an hour or two. Obviously YMMV if you drive a lot of miles every day.
We like this charger so much that we bought a second one to keep in the car for travel.