I know it's not all jam all the time, but it's still the main core of the set and like i said it can still be much at times. Bought all les Trésors du jazz that have been out so far and the pieces that i have the less interest were the JATP stuff included.
Bought the set when i started having interest in jazz and dough to spend, it was educational but if ypu ask me at the present time, it is not the music i'm digging the most right now.
To repeat myself, if you enjoy that stuff a this kind of setting, it is probably a must, once again think that Stereojack said it best.