I bought the snake oil in the form of a high end Ubiquiti WAP. Waiting for myco to issue me a new MBP touch bar so I can test it out.

Yeah, it's not snake oil. There are only a couple reasons it wouldn't work: you're in an unusual and unfortunate indoor environment with insufficient reflectors, or the modem designers were incompetent. Barring those things, you'll get a faster connection.

It is working great!

The snakeoil comment was about the MIMO functionality which I can only really test via my iPhone7 at the moment with the 2x2 MIMO client to the 4x4 MIMO AP (UAP-AC-HD). Once I get the MacBook Pro I'll have a 3x3 MIMO client.

I bought primarily because if this animation explaining the benefits of MIMO. https://unifi-hd.ubnt.com/

The marketing worked on me!

The Ubiquiti gear is, in general, great. It's high end consumer gear with enterprise-y features at mid range consumer pricing.

There's no magic bullet, and buying a bigger more expensive AP is, on its own, likely to make no real difference to any wifi benchmarks you might throw at it.

However, what you do get is the ability to easily place several APs in your house, know they will work together seamlessly, as you would expect from enterprise-y gear, and end with a more reliable and consistent wifi network.

(The article goes into detail why raw speed won't be gained by buying the bigger AP, so I won't repeat it here...)