Has anyone used a manual breast pump?

Katie
Mostly referring to Medela Harmony Manual
I plan to breast feed most of the time, but my husband wants to be able to feed the Cub when he gets off work. Which I don't mind at all. So I don't want to spend too much money on a breast pump I'm only going to use a little. I guess my question is, has anyone used this one, or a manual one in general, and do they work? I don't care how long it takes, I'm a SAHM as of now, so I have the time.