Crucial ram selector accurate?

[NumberEk]

How accurate is crucial compatibility of ram respect to laptop models. ?
Looking to buy Crucial 4gb ram CT51264BF160B for vaio vpceb24en.
Can i trust those compatibility selector?

See details here
http://www.snapdeal.com/product/crucial-laptop-ram-4gb-ddr3/642421273023

Crucial website-
http://www.crucial.com/usa/en/vaio-vpceb24en/CT5304204

 

[Tradesman1]

Generally they are very good from what I've seen

 

[NumberEk]

Generally they are very good from what I've seen

as pe reviews some syas it works some says it didn't.. hence the confusion.
At price point its affordable that's why following on it..