I have had a Razer BlackShark Headset, Mamba Tournament Edition (wired), Razer Mamba Wireless and a Deathadder. The only problems I have had is just the sensor on the Wireless Mamba, build quality is great, mouse feels great and they have lasted me 3 years already. I would also recommend Steelseries for mice as well. For my keyboards, I went from a Logitech G910 Orion Spark RGB.... it was my favorite keyboard but it was bulky and then I switched over to a Corsair K70 RGB and then a MK2. I do prefer Corsair for Keyboards over Razer due to the switches and not a plasticky feel for the price.