I've been using this mower for two months and I love it.  I mulch my grass and find that his mower is a powerful as a gas mower without all the hassles.  The height adjustment is accomplished using one lever, and the safety key is very accessible.  You may wish to buy a smart 24 volt charger to maintain a proper charge without overcharging the battery.  It isn't necessary, but it may prolong the battery life.