I used it after my second baby and it seemed to help. My stomach went down alot faster. Im not sure if it was because of the band or the fact I didn't have a Csection with my second. I have a brand new one that I am selling.
I just used a big fat ace bandage. They're way cheaper and adjustable! I think it helped a whole lot. Especially with my tailbone because it hurts my whole pregnancy and as soon as the baby's out and I'm wrapped for at least a few days the pain completely goes away. I learned the hard way with my first and was in a lot of pain the first few weeks until my mother in law wrapped me up and the pain was almost gone by the next day. It does help with my uterus too of course.
I bought the Bamboo Belly Bandit since they recommend it for use after a c-section. I was too swollen to use it the first day since I had 25 lbs of water weight after delivering. The second day I started wearing it and I swear that it is the reason I lost all the water weight so quick. I went from 136lbs after delivery to 113lbs only 9 days later. I used it day and night though and It was not comfortable but I stuck with it. Its basically just a compression band with Velcro on it. I am definitely using it again so its worth the money to me.