One recent example, there are plenty more out there: https://www.theregister.co.uk/2017/03/16/ubiquiti_networking...
The 802.11N Unifi gear is <$200 for a three-pack and works of MikroTik passive PoE like the RB260, 5-port gigabit PoE with an SFP cage.
MikroTik and Unifi is an unbeatable performance/price combo for individuals, large homes and business scaling up to medium sized and multi-site deployments.
With those prices and features you can affordably dog-food the setup and support your friends and family.
I also enjoy the level of control that comes with having separate devices for cable modem / router / wifi AP, for example being able to ssh into the router to configure things like port forwarding.
It depends very much on the construction of your house and interference of other nearby APs. We have an access point with a six-element beamforming antenna array (2.4GHz and 5GHz, Airport Extreme). WiFi in a room next to the AP is still reasonably ok. But once there are two walls between the AP and a device, the signal is basically gone.
We now use Powerline Ethernet and get excellent transfer rates around the house. (Of course, performance depends on the wiring, etc.)
[0] I went this direction and it's solid.
https://www.amazon.com/gp/product/B0167HG1V6/
It has 3 radios on board 2x5ghz and 1x2.4ghz.
It has a mode that allows you to use a single ssid across all 3 radios. It uses QOS to dynamically switch each devices to the best radio for at any moment.
I purchased the same device for a small retail business and it works amazingly well in that setting too.
Highly recommended.