PowerPrep V1.0: Gave a ranged score, 360-460 V, 650-750Q
PowerPrep V2.0: 147V, 157Q
Attempted 2 timed practice tests with Magoosh, got the exact same score: 153V, 154Q
And my estimated range according to Magoosh was: 155-160V, 156-161Q.
Actual GRE (unofficial, I appeared today): 157V, 158Q
My study schedule was woefully random which definitely didn't allow me to realise my full potential as evident in my score. As an approximation, I probably studied for about 2 months. Magoosh did a fare job of predicting my score. PowerPrep's verbal score was a lot less than what I got (WOOHOO!! English isn't my first language), however it was spot on with regards to my quantitative.
Best of luck to all future test-takers! Just make sure you're ready to feel the pain of sitting for over 4 excruciating hours in front of a computer screen.
P.S. Hey Badger12, both of us have the same score.