I haven't used this exact product yet (i just purchased it for a new windows 7 build) but i have utilized Norton Ghost 14 in the past. The primary reason i'm writing a review before i get a chance to play with ghost 15 is because there's only 1 review at present and it's an entirely misinformed review. If you don't read what the product is meant for and assume it's a magic pill to fix any problem you may be having then i can certainly see how you'd be upset after trying the product out.
However, if you have an IQ in the domain of natural numbers then you would read about the product before purchasing it and realize it's a preventative tool, not a reactive one. As i mentioned previously, i have used Norton Ghost in the past to great effect and would highly recommend it IF you have need of backup software (and you have more than 25gb's worth of it, otherwise Norton's on line backup would probably be better-er).
I'll come back with an actual review of Ghost 15 running against 64 bit windows 7 after it gets shipped to me and i've had a chance to play around with it.