Mesh network versus a simple Wi-Fi extender

@soix There are 2 different speeds when dealing with wireless routers.  There is the internet speed that you pay for from your ISP and then there is the wireless speed in which your computer, streamer, wi-fi extender, etc. connects to your main router.  For example, an Orbi AX4200 has a 5ghz max connection speed of 1200Mbps, but a real world speed of maybe 8 or 900Mbps depending on how close you are to your router and if the connecting device (computer, streamer, etc.) even supports that speed to begin with.  So then if you connect a wi-fi extender, it's only going to have a max connection speed of 4-450mbps.  Even if you only got a few hundred Mbps speed, that still is more than enough to stream music.  It's nice to have a fast in-home network connection for copying files between different computers, accessing files on a NAS and so that you are getting the full internet speed that you pay for. It can become very confusion and I hope I made it easier to understand instead of harder.

“I live in the foothills about a mile outside of Angeles National Forest.”

The price you pay for living in wilderness. I knew a friend who lives away from city and the only way he can get internet is through a satellite provider.

Streamers only need a trickle of bandwidth. My streamers are on extenders and while I can’t get my page to refresh on my iPad in unusual times of bad performance from my provider my streamers work flawlessly. I haven’t looked but I am sure they work fine on a couple mbs or so. While my wifi provides up to 500 mbs ocationally and 250 most of the time. It goes down to 20 - 35 a surprising amount of the time. 

In my opinion having ethernet cables connecting WiFi access points is the gold standard.  The exact same data stream that your modem feeds your main router will be the exact same quality, speed that the router feeds your other bridged WiFi transmitters when tethered together via cat 5e or cat 6 ethernet cabling. If your router is getting 900 mbps, so will the next device in the ethernet chain. If your AppleTV is hooked via ethernet to that remote access point, it will be getting 900 mbps.  No degradation or slowing of data rates found in typical Wifi "boosters" or Wifi repeaters people place in different areas of their home.  That being said it may be near impossible in many cases to string that much cat 6 ethernet cabling unless you're willing to pay hefty amounts for someone to run it thru walls, attics, basements, etc.  Often needing drywall repair etc. Thankfully mesh wifi systems offer a good compromise in all but the most demanding situations. WiFi 6 (and later 7 and 8) will continually improve signal transfer quality and reliability.

@fuzztone  If the network is rock solid, the SQ probably will be fine. If not that is the first thing to improve.

 "probably" will be fine? So it is not all about the network then, or is it? Care to expand?