Flush mounted Etrack on the floor

Does anyone have Etrack that is flush mounted on the floor? I'm really intrigued by this idea as it's convenient but also out of the way. I'm using this photo as a plan on how to do it.

What I don't know if what sort of problems arrise by doing this sort of flush mount? Is it a royal pain to live with?
Thanks.

What I don't know if what sort of problems arrise by doing this sort of flush mount? Is it a royal pain to live with?
Thanks.