This is the first mixer we (wife) have owned, so have had to do some research into proper methods to use.  So far, it has only been used to make a couple loaves of bread.  There is a bit of a learning curve, but that's more of a 'learning to bake' moreso than learning to use the mixer.  The mixer is heavy and appears to be of great quality.  Kitchaid has a reputation for products that last a long time, and we are glad to have been able to add this to our kitchen.  Looking forward to expanding use of this device and trying some new recipes!