I purchased these close to a decade ago and still love them.  They are my only set of mixing bowls and serve me well.  They are sturdy, lightweight, and the handle is the game changer.  I can easily and comfortably hold the bowl with one hand while beating out the last bit of contents.  It is also easy to clean because the lack of a rolled lip means nothing catches - even when drying in the rack.  The only downside is that it didn't come with a smaller bowl or offer one as an option to purchase.  I had to get another brand for that.