Pros: It effectively cools an Intel i5 750 I like the mounting plate, it feels very secure and doesn't flex the mobo the fit and finish were classic Zalman quality no chintzy shortcuts for a pricey product

Cons: As everyone has said, it blocks the closest RAM slot on most P55 boards including my GA-P55-UD3R. But I am using only 2 sticks of RAM ATM. At 6" high some cases may not fit it's girth. My Antec Three Hundred fits it with about 1/4" to spare.

Overall Review: This cooler is very silent, I have it in my HTPC and the sound of the HDTV was louder than this in everything but games. Load temps of 41-43C across the cores in prime95 with fanmate2 on full and 45-48 with it on low. The room was 25C. At idle it was running at around 22-25C at both speeds. Some folks didn't like the fan wireclips, I had no issue with them as long as I started from the bottom or top and worked them onver the fins.