Do you have 10GbE on your laptop? I only have gigabit ethernet on my laptop, and 802.11ac is theoretically faster. In real life I get about 80% of performance of wired ethernet, and this number will only go up in the future. Today, I am very happy with the 80% I get.

Curiously enough, that ratio is about the same as it was with my first laptop and 10baseT vs 802.11b...

Do you use a MacBook? They are one of the few notebooks that have 3-stream wifi hardware, which is why I'm consistently getting 800+Mbps in our Ubiquiti equipped office.

Yep. I get 800+ Mbps with Macbooks, iMacs, and Routerboard (Mikrotik) access points.