I would start this review by saying that this breatpump sucks, but it didn't. Lack of suction was only one of several problems I had with this item.
When first purchasing a breastpump, I wasn't sure if I would use it much so I went with an inexpensive option. In that manner, Evenflo fit the bill. But soon that old adage, that "cheap things aren't good and good things aren't cheap" became true.
Upon its first use, I nearly got carpal tunnel trying to pump only a few ounces of milk. It was uncomfortable and made a weird squeaking sound. It broke, and I replaced it thinking my misfortune with the first one was because it was faulty. When the second one also broke, I spent an extra $30 and got an Avent. Upon using the Avent I realized how bad the Evenflo really was.
I would avoid purchasing this product. Spend the extra few dollars and you will not be sorry.