Well they have a great reputation in the community, and they seem to listen to what the enthusiast wants.
They are an A+ company in my opinion and I don't hesitate to recommend their products.
I had some awesome Corsair PC150 DDR sticks back in the day for my first homebuilt system with an Athlon XP 1500+ but currently my only Corsair product is the HX520 PSU in my system.
I am looking hard at a Corsair 600T case to replace what I currently have and I'm tempted to try out a H50/70 watercooling system.
...maybe they should branch into the video card market?
Corsair RAM was the first ram I ever put in a system, and haven't looked back. Always my recommendation for builds due to quality.
I've never dealt with Corsair Customer Service, cause their products were so good, I never needed to.
Corsair memory has been the only kind in my computers for the last decade with good reason: it's absolutely rock solid. It took a computer that was prone to bluescreens and random shutdowns and made it run perfectly, and after that I've never looked back. The only stick I ever had a problem with (due to my own error) was replaced within a week with a slightly faster part, at no charge.
Corsairs has always been awesome company !! a year ago i lost a set of power cables for my hx1000,when i moved. so i called them up and they sent me a set for free in a nice bag & with free shipping. i know how the customer service kicks ass,just think how the CORSAIR RAM WILL KICKs ASS!!! thanks again