I buy them every year. they are fantastic to keep all papers together for income tax. enough spaces that I don't have to double up.I buy every year and got my fiancé to change to these.
I bought it because it has a separate sorting slot for almost every letter of the alphabet. It is slightly ungainly because the memory effect of the plastic lid flap wants to lay over the top and you have to fight it off while you work.
This is perfect for itemizing receeipt for tax preparation and storing. Categorized my deductions and store them along with the years tax return. 27 slots in it held enough to store 2 years