ive used a brush, ive used a duo and now i use an enviro, with 3 grades of brushes, it is virtually impossible to get the same result with a brush. its not about making life easier, i love hard work but a better result is paramount in this game.
and to put the enviro into perspective, if i was forced to lose the enviro or keep the enviro but lose the trucky to a 3 vac, i'd still have the enviro, its without doubt the key to the ultimate clean.