I like that you can give stars out of five for each item which helps people find what they are looking for much easier than other sites where it's one star or four! You need an account set up just so before using this site but once setup everything works smoothly!! It has helped me tremendously because now when i am shopping online (which happens all day long) at least 1/2 times my items aren't exactly right size etc..
The only problem was having too many different sizes available from every manufacturer - not enough choices sometimes. But overall its been very helpful.