Hiya.
I'm...disappointed? I'm a
bit of a killer DM, I'll admit, but hearing my players be actually
excited-and-terrified-at-the-same-time about the potential of death when dealing with a trap... and then the pure joy and sense of accomplishment when they come up with some ingenious way to defeat some death-trap by using
Cone of Cold, a full waterskin, a 6.5' piece of rope, two pickled hearings and a half-used candle? Priceless! But when they 'know' that a trap, and failing saves/rolls will result in nothing but HP loss? Well, the looks on their faces are more along the line of annoyance (as in
"Oh, great...ANOTHER trap to drain our resources...*sigh*..." ). In other words, traps become speed-bumps on the road to success...not dead ends.
That said, I can see new players and DM's that like to have "D&D Lite" style campaigns, two thumbs up.

The part about specifically dividing a trap into categories, with ranges for each, and then listing potential countermeasures... I can see that really helping new DM's as well as those wanting a more 'faux-death' type of campaign. But for old Grognard Curmudgeon Killer-DM's like me ...I'll have to give these a pass.
PS: Not trying to offend anyone here...just saying me and my group like our games the way like we like our contests against Sicilians.
^_^
Paul L. Ming