Feels weird for the first few minutes and I had to get used to 3rd click thingie... but all in all, it takes less than a day for it to feel natural. Not all ergonomic mousses are the same though so I got to try a few and this one felt right to me. Still, love it after all those years hehe. Not sure if it's good for gaming though.... due to time issues I stopped playing computer games a long time ago.