I think there's a lot of good, there, but it has its limitations.
For one, Abraham believes in selfishness. There is a certain satisfying logic to this viewpoint, but from a more spiritual viewpoint, I'm not so sure.
Abraham also talks about a time delay in the things you ask for. Law of Attraction works through the physical universe. Creation does not. With prayer or creation, there is no delay unless it is asked for.
Also, Abraham treats self as "vibration," and this is flatly wrong. Spirit is superior to vibration. Perhaps what Abraham is stuck in is Ego. This false self (ego) is vibration.
Look at it this way: vibration, by definition, is physical. Vibration means motion back and forth. It includes space, energy and time, and possibly mass. Spirit, on the other hand, is entirely non-physical. Anything physical is vulnerable; spirit is invulnerable.
There's a lot of value in the Law of Attraction, but that is also a physical law. Creation is far superior.
So, my suggestion is to get as much as you can from such teachings, if you desire to do so, but realize that you've made it up to a level with a definite ceiling.