It works well and loaded all my "watched" items correctly.
Effectively, it does what it says on the box.
However, I doubt if I will use this feature, as I tend to go to "My eBay" page for much more than just watching - all my stored searches are there so I really operate out of this page, giving feedback, adding new watching items etc.
I tend always to use the "snipe it now" feature which works effectively, rather than visit "My Snipes page". I visit "My Snipes" only if I get the warning "already bidding on this item" to check the price I put in. (getting elderly & confused!)
Not being negative Sarah - it adds to your total AS information package, but I tend to visit the AS Forums daily and "my snipes" Page fortnightly.