Recommendations for Powerline and WiFi Range Extender?

It probably depends on the layout of your rooms. A small apartment is not the same as a huge mansion.

Remember, you will need a decent wifi link between the router and whatever you buy as the Range Extender. It eats the wifi from the router and acts as a go between with any wifi devices that connect to ot. So the best place to put it would be somewhere between the router and the room where you want wifi.

This is not true of the powerline setup. That does not need to see the router's wifi signal. It does everything over the LAN on the powerline. So you can put the access point in the room where you want the wifi.

One thing against the EX2700 is that it does not support the 5G band that you will find in most modern wifi devices. If you want to connect anything like that, I would look for a more modern range extender.

The same applies to some older powerline kit, but the PowerLINE WiFi 1000 does 5G as well as GB LAN.

Speed may not be the  most important thing to you, but you wouldn't want to be disappointed when you opened the boxes.