I bought the 32 amp/50 foot version of the 32/40 amp portable charger to use with our Toyota RAV4 Prime. I chose the Primecom charger because we needed a 50 foot cord to reach from the 220V outlet in our garage to the end of our driveway where the car is often parked. The Primecom is the only charger we found that has cord lengths of more than 25 feet. We'd previously used a J1772 extension with the 120 V charger that came with the car, but the heavy male/female J1772 connectors in the middle of the extended cord were a pain when uncoiling/recoiling the cord to use it. About all I can say at this point (it's too new to say anything about longevity) is that it works as it should, appears to be sturdy and well made, and we're very glad to have the extra cord length.