I used this with my 1st son to sterilize his bottles and all of my pumping equipment. I love how large and open the main cavity is, additionally that it’s deep and I was still able to use the shelf attachment for smaller items like nipples. Super easy to use. A few years later; I am now pregnant with my second and was in touch with Wabi about refreshing my old system to make sure it was up to date. I have to say – they were awesome! Truly great customer service, excellent response time and very efficient!