ok as you may or may not no, im having a van mount fitted today and i want to get a new gardiners pole and brush

im gonna get an aqua adaptor too i reckon.
ideally i wont a pole that can reach 2nd floor! (as in ground, 1st & 2nd floor)
i reckon the slx would do me but not sure what size i would need? i dont want a goose-neck either. im used to the plastic adjustable angle adaptor ones. this suits me, as im only a domestic cleaner at the moment!
But im really struggling to get my head around all the different brush types

why soo many? blimey!
so whats the best brush for average domestic work on just maintenance cleans?
and do most of you use a different brush for first cleans?
any advise very welcome

Tar
GB