Wired vs wireless cable tv box

I had been using directv for my tv and xfinity for my cable internet.  I decided to use xfinity for both and canceled directv.  I was given a wired tv box from the xfinity store and was told to have a technician come out to hook it up as I wasn’t sure what kind of connections I have where the tv is.  The cable internet modem is on the second floor directly over the room where the tv is.

When the technician came out he was surprised that they hadn’t given me a wireless box and said that was easier to install, had better quality of picture and can be moved if desired.  I took the wired box back to the store and they arranged for a wireless box to be sent to me.

When I received the wireless box, I was able to set it up myself fairly easily even with the receiver and surround sound system I have.

So far the quality of picture seems to be ok but I’m wondering if a wired box has better quality and dependability since I have read in several places that wired is better.

my question is should I go back and get the wired box instead of the wireless?

thank you