GTD Tickler Files - David Allen Co.'s vs. DIY

I immediately put them into test, the files look great inside my black PU document box. Two problems came right away.  First, the size of the files is a just-fit for A4 documents, so if I have catalogs or booklets slightly bigger or tagged with post-its, they will protrude from either side and things become not so tidy.  The second thing is that despite their sturdiness on the tabs, when you put say two or more FastCompany magazines in it, the thin plastic simply doesn't hold the content well, the weight will make either the front cover or the back cover, where the tab is placed, drop below visible level.  Imagine you have catalogs/magazines/thick documents filed for reading in the next week, the tabs will start to look very untidy, you may not even be able to find a particular day without some fumbling.  This didn't happen for my paper based manila folders, for reasons I will specify below.
There is just one thing I didn't like about my previous DIY GTD Tickler Files: tabs are prone to wear and tear which will soon make the whole thing ugly (yeah for things I care, I can't tolerate ugliness). 
My old DIY files allow me to write on the cover, it is larger than A4 which contains all of my documents completely covered neat and tidy. Best of all, they have grooves or folding marks so that I can file thicker catalog/documents, the front cover will drop lower because of the thickness of the documents inside, but the tabs remain visible for clear indexing purpose.
All in all, I have no regret making this purchase at all coz I love great looking stuffs, besides it is cheaper and longer lasting than what I did using Lion's manila folders.  Perhaps next year I should find one of our suppliers to make an even better version so that some of you may enjoy the result of my study :)