Good? Yes; until they break within a month. They are known to have a horrible life span, of which I have experienced first hand. Their quality control is abysmal. You are paying for the brand name.
Let me tell you what has broken between my brothers and I. We do not share the products, we buy our own things - we do not live with each other either.
Broken:
4 Razer ONZA TE Controllers (They have horrible potentiometers, in fact, I've repaired them by using potentiometers out of a Playstation 2 controller).
2 Razer Lycosa Keyboards
1 Razer Blackwidow Ultimate
1 Razer Carcharias Headset
1 Razer Mamba
And their plastic mouse pads will eat away at the Teflon feet on your mice very quickly.
Stick to Logitech unless you like Razer and have money to burn on replacements.