As a physician in a high-volume hospital system, I don't often have time to take 30 minute (or longer) breaks to pump every 3-4 hours. With Willow, I was able to pump on schedule without having to worry about falling behind on work. I could also pump while driving, shopping, or even lying down (critical for those middle-of-the-night 2AM pumps). There was a bit of a learning curve at the beginning, but everything quickly fell into place. Bags are a bit pricey (I had the 1.0, so the new containers weren't an option for me), especially if I only got 1-2oz during the pump, but are also so convenient if you're on the go and don't want to waste time transferring from pump to bag/bottle. I was also able to freeze directly in the bags, which saved me from having to buy bags specifically for that. As long as they weren't too full, they froze pretty flat so I was able to stack them to the ceiling of my freezer. At the time of this review, I've already completed my pumping journey (still direct breastfeeding every day, though), but I don't know if I would have made it to my 1 year goal of EBF without this pump. Although there are other cordless pumps available, my experience with Willow has been so smooth that I hesitate to explore other options whenever my next pregnancy comes around. Why mess with what works?