Tbh theres not alot of difference between them -as none are really made for scaffolding they all tend to suffer the same symptoms when breaking down
1 brushes
2 armitures
3 anvils
when u buy a newone u obviously get a warrenty with it , but that means loosing it for a couple of days whilst under repair,& with some makes like the milli & panasonic the spares are not only expensive but often hard to get hold of....the makita is not only cheep to buy but parts are as well ,easy to get hold of & really easy to change urself.