I like the fact that it has a Left and Right separate suction controls, now I can double pump and be able to regulate suction individually. One thing I love most is it memorizes my settings and save me a lot of time. Cora is my 2nd Baby and the Effective Pro motivates me so much to continue breastfeeding as it stimulates my milk supply. Oh…another thing is, it has Dual Expression. It will go to Stimulation first, and I love that it automatically switches to Expression mode without me having to push another button, unlike what I had in the past. It is quiet, very light and convenient. The silicone cushion is just so comfortable and the collection bottles actually come with a stand which is very helpful and prevent the bottle from tipping. I just love my Bellema breast pump!