Which Breast Pump?

I'm just looking for personal experiences. Which brand/model of pump do you swear by?

I used a Lanisoh with my first, and it didn't go well. The only time I could get more than an ounce out of each breast was if I woke up at night engorged. I'd really like to have a better backup supply this time for dad when I'm not home.

So hit me with recommendations please!