Personally,
I had a logitech wireless mouse and keyboard. it was not a cheap one either! Total setup was £101.
The bluetooth software was horrible with constant loose of devices. the lagg was ok 98% of the time but i did get the odd movemnent jerk.
When i upgraded i ordered the Logitech G15 keyboard not aware it was not wireless. the mistake made me consider sending it back but after using it i would never.
loved it, games awsome and no issues.
Good old wired beats my old wireless hands down.
However i also have a Logitech Revolution Mouse. Which is also awsome and dont lagg. but its not bluetooth so maybe stay away from bluetooth wireless?
Hope this helps.
Exactly the same problem, I've got the Logitect £100 odd bluetooth setup, forgotten the name, the keyboard will often drop connection when playing games, but the mouse is always fine. Pretty poor and will be changing back to either a Microsoft or wired solution sometime soon.
Keyboard is awesome apart from that![]()