Expect to do bad. All tests are difficult depending on the section. DO NOT GET DISCOURAGED. If anything, use these tests for timing and getting used to a four hour test, do not allow this program to judge your progress or knowledge on the material. I got 16s and 17s on a lot of the sections, and got atleast 4 points higher on EVERY section (except QR). The RC is ridiculous on there, I was getting 15s I think so use another source if you want to practice. ONLY section that is comparable is it's QR.
Seriously though, do NOT let it put down your confidence if youre close to your test date. I got depressed my last 3 days before the test that I didnt even want to study anymore because I had done so poorly on them. After taking them, go over what you missed and move on, do not beat yourself up over this program. Good luck!