Honestly, I have heard some people praise Cymbalta. They find it very helpful, they find that it does what it's supposed to do.
I was prescribed Cymbalta for chronic pain and depression; I took it for about a year. It just wasn't effective for me.
I've been on all of the SSRI's and SRNI's. With all of them I've found that they start to be effective within some days...3, 4, or 5. Kind-of a "kick start." Then it takes around three weeks to reach a stable blood level.