if you already have them anyway just use them. For the 5th one you can just take a NanoHD. If the others get too slow at some point you can replace them gradually.
I don't know it from personal experience. What stands out to me is the power consumption of up to 22w (4 times as much as the NanoHD).
According to the datasheet, 5ghz 1299 mbits and 2.4ghz 450 mbits as well as only 3x3 mimo. I only know older devices from Devolo. AVM or Unifi were superior in terms of usability and performance data.
It's also quite large...
Personally, I wouldn't save 200€ on 2-3 APs and then "worry" about administration, design, power consumption, etc. How often do you replace them then? Every 5-10 years?
The Devolo or any others work just the same. We're talking about residential buildings here and not halls with concerts with thousands of devices...
You can be happy with both. For consumers without deeper understanding AVM is certainly a good choice as it can also be managed in the Fritzbox.