if you truly want to get "better" at poker...dont get it.

but if you want to get better FASTER, get it. but, you need to learn it's limitations.

-it is invaluale at spotting leaks, but you can go overboard with individual stats.
-it will help you "put villains on a 'range' of hands quickly" due to tendencies, but cannot replace "individual reads."
-if you multi-table (some say you are doing a disservice to your game by multi-tabling), it helps identify good tables/seats, but doesnt help you adapt to table conditions w/o deliberately focusing on adaptation.

and so on...

in short, get the thing. you will improve faster, but need to learn it's not the software that improves your game...

its YOU paying attention to factors that you could not "graph" on paper by yourself.