Simple to use. Light weight for a 200A charger. Times out when you crank for too long but has a timer so you know when it will be ready again. Very happy with this battery charger. Cheaper then a Napa charger ($245) With anything that is expected to roll over a shop floor the wheels are never big enough but I'm not holding that against the manufacturer as every company puts small wheels on these things. I have charge plenty of batteries with this thing but haven't put it to the test yet in my opinion. I work on diesel trucks as well as heavy equipment. Haven't tried starting a log truck with dead batteries yet but it won't be long.