They were good enough for mom. And now we love these plain old clear glass nesting bowls by Pyrex. They are simple in design and fit into any decor - we use them in our modern home and mom has them in her country home. They're great for prep work and we even use the large one for serving on occassion.
They're always cheap and readily available. Get the 3-piece set (1-qt., 1.5-qt. and 2.5-qt) at Amazon for only 10 bucks.