Thanks guys,
Ill try and explain a little better!
BTORM -- PN router -- 16P gigabit sw (which feeds number of wired devices & the Asus which is acting as an AC WAP at the other end of the house.
The PN router is currently serving wifi to the rest of the house & acting as the incoming router.
TBH, the PN router has been OK so far, but was just wondering if there was better?
When i was browsing iTunes earlier, some pages were not loading artwork at all and sampling some tracks there was a fair bit of buffering which i never had before.