1. The earlier questions appears to be easier than the ones at the back.
2. Time is a BIG issue. Questions in the later half (number 30-66) had so much text and took some time to set up + solve. I am not sure how to do them within 2.5-3 minutes. The initial questions were easy though: I did the first 20-22 questions in just the first hour. Got really hammered and demoralized during the 2nd hour though, and it went all the way downhill from there.
3. Difficulty level: feels like when I was doing the 2005 test (official GRE practice book) for the first time, which is far more difficult than Princeton Review or the older practice tests.
Overall, I did badly. Only managed answered 40 questions.

Wasted too much time (7-10 mins!!!) trying to solve questions I am stuck on, really need to force myself to move on after 3-4 minutes! Got really discouraged and distracted halfway through the test.

Taking it in November again. Hopefully will hit my target of answering 50 (or just 45!) questions then.