I have be use this pump for over 8 month now . the only thing I like about this product be maintain my milk supply . I have use other product but its not as efficient . I be close to exclusively pump since the 4th month and I pump about 7 to 8 time per day and it break down on the 7th month . customer service do promptly replace the product without too much trouble . however , when I question about the milk get into the tube , they just say , `` its ok '' you just sterilize it and disregard if its clouded . I really doubt this one as its very impossible to thoroughly sterilize the tube . so , I have to buy replacement tube so often . I could have buy a better kind with all the money I spend from replacement tube . it have soo many part too that you need to wash every use . I guess there be other type that be fewer part to wash after each use .