In all the years I've used wireless dongled mice, I've never had an issue. And all my stuff is bottom of the barrel unbranded from eBay or Amazon.
Bluetooth mice and keyboards always have trouble pairing, or there's input lag, or sometimes I can't use them to wake the computer. And if you ever want to hold a startup key...
Clarification, the dongled mice are cheapo, the Bluetooth mice are expensive and still bad.