Bear in mind, too, that WGT rolled out the notebook with serious design flaws and is promoting it anyway. A serious grab for Christmas money that wasn't thought out very well.
Notes can't be taken in multiplayer games. WGT claims it is to speed up the games but if we're playing with a timer the clock will eliminate those players that take too long to enter notes. If the player starts losing because of it, they'll quit doing it. The time claim by WGT is not particularly valid.
Each course is treated as a separate course. The "Best of" holes are separate from the same hole in the actual courses. Thus, notes taken for SA #18 when playing SA don't transfer to the hole when played on the BOFH and vice versa.
When practicing in single hole mode through the "WGT Community -> Golf Courses" route the notebook opens only to hole #1 of the course and not to any other hole you may have chosen. With no way to scroll through the book it is worthless.
In CTTH single player the player must enter notes before each shot is taken, not after the results of the shot are known.
In stroke play notes must be entered before a shot is holed, whether by putting or not. The game automatically records the score and moves on with no way to get back to notebook other than taking a mulligan and not counting the shot that went in the hole..