I have been using this since went back to work 3 months ago. I use it three times a day, five days a week. It is comfortable and fully adjustable to accomadate your changing body in the months after giving birth. What I like about it:
1. It actually holds the full bottles without dropping or pulling on you
2. It really does adjust to fit your new and continuing to change body shape
3. It is machine washable
4. It can be used by full breasted women (the Medela freestyle, for example, can't)
5. You really can type, etc. While you pump. This means I can keep doing something for the 20+ minutes it takes me to pump each time I pump.