Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Makes Expressing HARDER

As if being a new mom, working, breastfeeding, and a new baby aren't challenging enough, along comes the Evenflo Comfort breast pump! I've used a Gerber pump for 7 mos and when it stopped working I bought this one. It has been a month and a half and I utterly regret it. I pump twice a day and it is horrible! The rubber seals need to be perfectly installed and even if it works for the 1st 15 mins that doesn't mean it will keep working. You have to constantly keep an eye on it, instead of relaxing, if not you will be covered in milk (as I have often been). I normally love Evenflo products but this one falls short of all my expectations.