I have both the Baby and the Go. I purchased the Baby first and after deciding I liked it, but wanted to be able to try out a few of the larger size dies, broke down and bought the Go. I don't regret buying the Baby, as I find I can cut with the smaller dies, while resting my bad back in bed and setting the Baby on a tray on my lap. I usually stick to 4 layers of fabric and don't find the crank difficult (and I am 76 yrs. old).
I reserve using the Go for when I need to use the bigger dies.