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I think most things will be moving to a USBC standard in the coming years so maybe try to pick one of those up to not render yours obsolete in a few years.
Always thought the problem with USB chargers built into sockets is the power they provide is pretty low. Might not be able to power a laptop (ok, this more a thing for an office than kitchen) as they're expecting ~60W+ chargers.
Why not get a pop up socket and then put a proper USB charger in one of the sockets - then as standards change you just change the charger.
RE the pop-up socket - I love the ideas of these, however, a lot also have the USB ports built-in. I think most things will be moving to a USBC standard in the coming years so maybe try to pick one of those up to not render yours obsolete in a few years.