The older model was a little bulkier and the hot water side broke after about 5 years of use. So, this was a great, sleek upgrade that gave us just that little bit more of counter space, but with the same great features we needed. I personally love how you can take out the little tray that goes below the hot water spout. That helps clear up a lot of space. 
Anyway, hope this model lasts with all the use it’s getting since we use it mostly to warm our baby’s bottles.