These Tupperware 3-piece Wonderlier Bowl Set are three bowls that easily store inside each other and with their own individual lids. I buy them because of easy storage - be it empty or filled with left over food. I just need to stack them up on top of each other when they are used for storing left over food in the fridge. Moreover cleaning them is very easy since they are dish washer safe.
Strong points: Like all Tupperware products it comes with whole life warranty against chipping, breaking, cracking and peeling.
Cons: Very pricey to pay for a set of plastics. I guessed the high price is because of the life time warranty!!. It is not microwave safe. Actually with that price I can buy easily a good microwave oven safe pyrex or Corningware. But Pyrex and Corningware do not have life time warranty like Tupperware. Hence it is basically choosing between plastics that come with life time warranty or glass with no life time warranty!!