Just picked up a copy from my step-father on Sunday.
I believe this would be a good refrence manual for the new Glock shooter.
For the long time Glock shooter, he could probably get by without it.
It has excellent assembly and disassembly photographs.
It also has the best pictures I've seen, on doing the .25 trigger job.
The thing I did'nt like was their own Glock "torture test". A total waste of about 38 pages.
Hope this helps.