I did the 30 day shred and didn't see huge results, but I also didn't change my eating enough at that time to see a difference. I think if you eat well and do these DVD's, along with maybe a day or two of extra something, walking, running, or whatever, you can lose.
I like Jillian's Ripped in 30 better, it is 4 weeks instead of 3 and I just like the way it's set up better. It's still the 3-2-1, but there are 3 strength exercises per circuit instead of 2. I think if you complete 30 day shred and enjoy it, try Ripped in 30 after and you'll like it.
Goals for 2014:
Complete Couch to 5K
Sign up for and complete a 5K
Plan at least 3 outings with the family that involve being active