I currently use AC1200. It has being in use for quite a while and performing well. Couple of issues I struggle with are: it seems that with 14 active clients equally split between 2.4 and 5 Ghz I am bumping in some limitations where certain devices are unable to get any bandwidth (they are bumped out), the coverage of 1700 sqf single story house is not great even though it is wood frame built and router is in central location, and the third problem is low performance on 2.4 because of interference from other routers in the neighborhood. I have 200Mbps cable connection and don't care about v6 or gaming performance. I care about reliability (2.4 and 5 GHz) and reasonable reach/coverage. I have originally looked at AX10/20/50 but internet is full of bad reviews in the areas I care about. What should I buy?