i've read it, and it's interesting stuff, especially if you like the geekier/tech-y aspects of stuff, but i don't think it's required reading or anything.

there are so many variables that contribute to the feel of bike that it's tough to pin all of them down.

stuff like construction (lugged, fillet brazed, bonded), quality of the bonds, the gazillion combinations of tubes, the builder's attention to detail, frame geometry, personal riding style and preference, rider mass, rider anatomy, rider strength, etc. ad nauseum all have an effect.

there are material qualities that are broadly true: most aluminum is stiff as hell, steel is a little more forgiving, and so on that you can look at, but what it all comes down to is what you like.