I have 150 Mbps and a sub $50 router (ac-68u commonly sold by t-mobile on clearance as tm-1900) does fine with sqm without any significant loss in speed. Note that this has no open wifi drivers. So you'll need a separate AP, or use a more blob friendly distribution like dd-wrt. Or use two of these, one with blobs as AP and one without blobs running openwrt. That was a great combination under $100.