Had a problem with the wireless mouse/keyboard combo. Mouse meandered, stopped periodically, then raced to catch up. KKKKKKKKKKKKKKKeyboard tended to rrrrrrrun on a bit at times. PPPause at others.
Found an excellent compromise in a wired keyboard/wireless mouse combo.
You generally don't move the keyboard much.
Dislike corded mouse with nasty little tuggy tail.
On the other hand, they do like to eat batteries, and always seem to get hungry when you're in the middle of something important.