I have a hitachi 1/2 gn, and it is fantastic. I hav shyer away from the makta's because the me guy at work who has that brand has had no end of trouble with them.
Whatever you decid, just remember to do the final tighten of the wheels nuts by hand, for two reasons. 1, being that you have felt they are all tight, and 2. When you are on the Sideof the road and you forgot to charge your battery you can undo them by hand
Cheers