Rather than go through all the good things let me just say it's a remarkable piece of equiptment...so far. Durability will be the judge.
If I had a critique it would be regarding the constant ON BUTTON. It needs to stick out as far as it needs to be pushed in. It would not get in the way of the operation if it stuck out for easier operation. That button is used a LOT and to have to push it inside the casing is a hardship.