This gets a mixed review. The inventor gets 5 stars for taking something most of us throw away and making something useful with it. These are assembled with double sided tape. With all due respect to them my experience with tape is that it eventually deteriorates. Possibly enough sticky residue will be left behind to hold them together. Time will tell. Build construction gets 3 Stars.  Price-1 star! These are ridiculously expensive! Priced between $18-21 per cube. I bought an 8 cube organizer made of veneered wood for $88. 8 of these is $164. The 8 cube organizer is much higher quality and the individual cubes wont slide around.  Yes you may need to stick these together for stacking. Overall a good idea, workable, design space flexibility, good for light duty storage.