Thanks! After being delivered to the wrong address, I have it all set up and working. As expected, we need at least another one AP upstairs. The setup was fairly straightforward, some parts of it didn't go as expected because of external factors (My internet provider not updating for the new router etc), but I got there in the end. I was also wondering, as it is looking like at least one more AP, is it OK to mix and match APs from the Unifi range? We don't need 6Ghz upstairs particularly, so I was thinking, I could maybe get a couple of the U7 lite for the price of another U7 Pro Wall?
Yes, I did the update, it seems like a nice, well thought out eco system, and I can see why people like it. The only odd things that I've encountered so far, are that some of my devices are significantly, wrongly identified, for example, I have a Lyngdorf streaming amp, that is coming up as a TP-Link camera in some areas of the software and in other's, it comes up as a NAIM powered speaker. I can't see anywhere to change this (the vendor and picture), other than the name of it. Aside from that, though, it's quite intuitive. I wasn't sure about having all wifi 3 bands on the same SSID, but it seems to work well for most devices, but there are some older devices that don't seem to like the more modern settings. I was also wondering, as you can create extra wifi networks, is it possible to create a new 5Ghz band for these older devices that are struggling with the more modern settings (it's an old 2017 iMac with wifi 4), and just have those on it? Would this reduce the strength of the main wifi network?