Depending on the game you are playing it is hardly noticeable. If you are not playing twitch shooters or some fiddly jumping platformer, they work just fine.
Lump me into those who picked up a steam link lol. Hey for $2.50 cannot really go wrong there. Thinking about picking up Rise of the Tomb Raider.
Outside of those 2, I don't see much of anything I like on sale enough to purchase.