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Easy to hook up. Display is nice touch showing battery percentage. BUT...having to choose battery type everytime is dumb. As another person mentioned, if you lose power or someone unplugs and plugs it back in, it will not trickle charge due to having to choose they battery type.
If the charger says that my battery is less than about 60% charged, it reports "Charge Aborted - Bad Battery." This is a brand new battery just a few months old, so I don't believe that. I have to hook up my old trickle charger for many hours to get the battery up to 60%, and then this charger works OK: only then does it charge up the rest of the way.