I was so excited to purchase a couple of sets of these: 	
Rubbermaid Brilliance Food Storage Container Set, 14-piece, Clear : (#7U27)
They were lovely AND could be used in microwave (bonus for leftovers for lunch), super stackable, easy to use, etc etc.  Even my kids and husband commented on them.  However, after less than 8 months of use 3 of the pieces cracked in multiple places.  They have been used in the microwave, but never put in the freezer and only in a dishwasher 2-3 times.  I so disappointed!  I never pay big money for storage containers...just wait to find them at rummage sales...and the one time I do.  Blech.