3 story duplex. I work from the 3rd, live in the 2nd with a buddy and my buddy and his fiance live on the 1st floor. Fine with them using it at times, but they have their own internet (1st floor).
I'm leaning towards getting TP-LINK Archer C9 AC1900
http://www.amazon.com/gp/product/B00PDLRHFW?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
Yep, up on the 3rd. Hardwired to a couple computers up here. very nice! Easy to set up?