The GMATprep software is free. I have noticed that the difficulty level of the GMATprep quantitative questions is far higher than PowerPrep. Is the difficulty of the GMATprep problems and the cryptic wordings comparable to the way the current GRE quantitative section is written?

I realize that the format of many of the questions (ie. Data interpretation vs. quantitative comparison) is different. However, this does not negate the fact that you can get a lot of practice with difficult language and complex reasoning using GMATprep.

What do you guys think?

GRE Kickboxer