Pros: On paper these look good, and Crucial has a good reputation.

Cons: Dead on arrival. Putting one of these sticks in prevents my PC from booting, whether it is by itself or with one of my previously-installed 2GB sticks. Possibly an unusual hardware compatibility issue, but there is no warning about this on the store page or manufacturer's website (timing and interface are correct, though). Physically the DIMM boards are nondescript and feel a little flimsy - I wonder if maybe temperature changes during the delivery period could have cracked or damaged something. Documentation with the product is literally nonexistent except for a link to crucial's website. Not unacceptable but it would have been nice to have a datasheet or something.

Overall Review: Waiting to hear from tech support before I give up on these...giving it 3 eggs for now. If this doesn't get resolved, -2 eggs; if it does, +2.