Logitech MK825 Wireless Keyboard & Mouse

Been using Logitech keyboards and mice for a very long time. Had an aging Logitech mouse go whacko on me so thought it was time to replace and [hopefully] upgrade. I use the heck out of these as I work from home. My old Logitech keyboard that I've had since 2015 is still functional, but the letters on the keys are worn off (and that happened in the matter of a couple of years). The associated mouse that came with it though? It's toast. Bought this set to replace what I have. First, this keyboard is mushy - next to unsuable...horrible, horrible, horrible! After about 5 minutes with it I felt like throwing the piece of trash keyboard against the wall! The mouse? It works, but is one of those that has to be recharged. What was wrong with the AA battery setup? Don't get me started on how difficult this is to setup on a brand new MacBook using Bluetooth. It connects then immediately disconnects. Spent over an hour trying to get this setup to connect via Bluetooth and finally gave up. Plugged in the stupid USB dongal that came with this set and it all came to life. Bottom line: This setup won't work with anything but the supplied dongal that came with the set (especially if you're using a Mac). Obviously wasn't thoroughly tested (shame on you Logitech). I've had other Logitech products that would connect to either Windows or Mac without any issue at all. Not this one! Returning this one - it's abysmal quality at best. I think this is the last Logitech product I'll ever buy...their quality has gone down the toilet!