Summary: The Thermalright V1 Ultra delivers excellent cooling performance, even when the fan is running slow. Good cooling performance does not mean that it is loud, the fan noise is very acceptable.
What I really didn't like was the complex installation, but you have to be a bit patient with Thermalright.
Pros: Awesome performance, Quiet, Wide compatibility, Fan can be changed
Cons: Horrible installation, May need some rework/longer screws, Does not connect to video card fan output, Expensive