As others have said, the Guile and Cunning cost too much and currently penalize Halfling builds. The solution should be one of two things: combine the Guile and Cunning and reduce the cost or separate the two and maybe reduce the cost.
I think the saves are fine, I guess...but I've never wasted AP on them.
As for the Haste Boost, I can see both sides of the argument. Maybe instead of creating a Halfling haste boost, Halflings can purchase an additional Haste Boost, as long as they have a class that uses Haste Boosts (Rogue, Fighter, etc.).