Well I put my money where my mouth/keyboard is and installed one at my wash machine.
Already have a "whole house" suppressor and have heard that multi-level is best repeatedly.
Personally I hate those plug strips, but yes I own a few. IMO They look like an answer to P Poor Planning and they usually are just that.
Yes the strips are cheaper and easier to replace, they just look bad especially if one makes a living doing electrical work.
I can honestly tell my customers yes I have this in my house and would recommend it. Just my OPINION.