Moving on to the surface coating, the top part of the mouse shell feels like it has some sort of rubberization on it, but I am not entirely sure. The touch is extremely soft and pleasant; this is definitely one of the best coatings I have ever felt on a mouse. It's quite grippy too; the chances of your fingers slipping off are near zero, I would say. I have sweaty palms, and this top shell was really grippy and comfortable after even hours of continuous use.
The coating of the side areas is a bit different; it feels like a grainy plastic with no rubberization at all. I think it would have been a wiser choice to use the same coating here as on the top part of the shell since this feels more slippery compared to that one—I had no real issues with slipping, though.
Build QualityAs for the build quality, the HyperX Pulsefire Surge has nothing to be ashamed of. I couldn't make it emit a single creaking noise, even when I pressed down on the shell extremely hard. The early batches had issues with the two main buttons grinding against each other, but that issue was quickly fixed, and the later batches are absolutely free of it.
The Pulsefire Surge feels very heavy in my hands because of its size to weight ratio. It's not a big mouse at all, but is quite heavy at 104 grams with a few centimeters of cable, and the balance is a tiny bit off towards the back. This means it's in the same weight category as some mice that are way bigger, such as the Razer DeathAdder and Microsoft IntelliMouse Explorer 3.0. Of course, everyone's different, so while this mouse is way too heavy for me, it might be perfect for you. Generally speaking, a lighter mouse is better for your wrists in the long term, though, which why I and a lot of other reviewers and gamers recommend lightweight mice.