This was purchased to replace a  Sunbeam 12 speed mixer I had for  over two decades. My old mixer came with two glass bowls a small and large.It worked very well for over two decades.This mixer which appears to be more complicated and should be more powerful is actually weaker. I was impressed by the all metal body and the fact  that it had a gadget to prevent batter from spilling out and make adding ingredients easier.That does not work very well.The one bowl also is a great inconvenience.I realized that when I had to beat egg whites and add it to a cake I was making. I don't know if there is the option of buying another bowl.This mixer also vibrates a lot and also gets warm after few minutes of use. I hope it lasts at least five or more years since I don't do much baking.