The basic statistics are important to include, just for the purpose of forming an image in the reader's mind. However, bear in mind that probably no reader is going to buy a bow that is exactly the same statistics as the one you are reviewing anyway,
What would be important for me are the subtle things that probably wouldn't be in a sales ad. For example, how close is the hand to the shelf. Would it be possible for me to feel the arrow shaft with my forefinger as I draw the bow?
If the bow is reflexed more than usual, why did the bowyer do that? How did the bowyer deal with potential problems of stability that might arise from a highly reflexed bow? If the bow is reflexed less than usual, why did the bowyer do that? How did the bowyer deal with the potential problems of loss of performance that might arise from a less than normal amount of reflex?
If the bow has a long riser and short limbs, why? If it has a short riser and long limbs, why?
Grip is critically important and hard to describe. What does high, medium, and low wrist really mean? What does normal, slim, and fat grip really mean? It would be nice if there were a standard grip to compare these terms to, but that would be hard to come up with. I would say use a medium grip Bob Lee as the standard, which would be meaningful for me, but meaningless to someone who has never gripped one.
Not everyone agrees on what the correct tiller is for split and three under, or that it even matters. If a bowyer believes zero tiller is best for 3 under and +3/16” is best for split, why does he believe that? Is it because the bow draws evenly at that tiller on a tillering stick, or because the limbs recover evenly at that tiller when shot? How does he test this, or did he pick those numbers because they seem to be what everybody is using?
I don't think a bowyer can be successful these days if all he's trying to do is to build a good bow at a fair price. There are factories that already do that better than any individual bowyer ever could. So he has to have a plan as to why the bow he is building is a unique bow that fits a particular niche better than any other bow that exists. What is his plan, and why is his bow unique?