My Brose powered Bulls has been excellent though I have only had it since February and done about 300 miles. The power "characteristics" are a bit different but it suits my riding style. I have had no motor issues and the criticism of Brose seems to emanate from some Levo owners. Looking at the Scott installation it is very similar to the Bulls hard tail which has a 650w battery as does my FS Bulls, what size is the Scott battery?