AC outlets

I'm considering replacing my 20 amp Hospital grade ac outlets by Leviton, for better audio quality outlets.
I read a review that ACME ac outlets are a good value @ $45.00 and Mastro outlets @ $89.00 are also recommended.
If you use either of these I'd like to know your impressions. Or, if you replaced your ac outlets which did you chose.
I'm using solid state components.

Also, did anyone find replacing the ac face plate improve your system?

Thanks,

Rick.