@JCSTU 

I do not expect you will encounter performance issues.

I suggest locating the xe75 where you do require superior wifi performance.

It is quite easy to swap a main and a satellite Deco.

EDIT:

I meant "I suggest locating the xe75 where you do NOT require superior wifi performance."

  @yves_b 

Hi thanks but 1 question regarding your suggestion. The xe200 should have significantly better wifi performance right? But you were suggesting putting the xe75 where I needed better performance. Can you help to explain for me? I was intending to keep the xe75 in the basement as the main unit

  @JCSTU Sorry, my mistake, I meant "I suggest locating the xe75 where you do NOT require superior wifi performance."

  @yves_b 

Noted Thank you! 

  @yves_b 

Hi, just an update here.  So I set up the xe200 and my wifi speeds dropped significantly, almost to 1/3 of what i was getting on the xe75's.  I ensured I was connected to the xe200 and used speedtest.  Not sure exactly why this would be happening.  Again, I'm using an xe75 in the basement as the main unit and all my units are ethernet backhaul.  Any ideas?