I’ve had good luck with both a wired and wireless version so I can’t say much about that.

Fwiw I’ve use/d a K551 and K552 keyboard, M801p mouse, and a M601 mouse the later of each got handmedowned to my sons. 2021, 2017, 2019, 2015. The K552 is used as a toddler toy…

All of them still function great so I guess ymmv.