[Prince]

For FPS, I would say to get a Logitech G500, or a R.A.T 7 (9 if you want a wireless one).

They would be your best options as they don't have all the 50 different side buttons for macros.

But the M65 definitely looks on par with the ones I've mentioned, seems similar to the G500, the R.A.T with its customizability is just amazing however, I had a R.A.T 5 but they tend to not be as durable as you hope they would.