With proper stuff it's almost never 'good' or 'bad'. But if you know the reviewer tends to favor a slightly more bassy FR than you, or generally downplays the comfort. Then you can look at their review and have a good idea of how your opinion on said headphone would be.

But if you know How your opinion differs, it is almost as usefull as if it was identical.

I'll trade you something with less heavy metals for your LCD's