So I took it today.  got 50/6/7/5, the test was difficult for me.  It only asked me 10 math questions (wtf) then moved on.  Mechanical comprehension was difficult, but I knew it would be coming in.
What surprised me is that I was a hopeful for the Air Force OTS and took the AFOQT/TBAS about a month ago.  I got a 79/85/95/86/95 on that, with my math section being a 95.  I felt like I would have no problems with the math section but it asked me vague concepts and did not give me the chance to answer hard word problems (which I actually do well at).
The joystick part was difficult, but I think anyone who has taken the TBAS from the Air Force knows the TBAS is much harder.  The ASTB lets you use a throttle as the secondary tracking, the Air Force makes you use foot pedals.  Foot pedals with dichotic listening...yeah, good luck.
I was just surprised coming from a relatively high AFOQT scores how I did right at/below average on my OAR.  I'm not a crazy intellect but I am a very good test taker and have been my whole life (2250 SAT, 32 ACT, always do well on school tests using logic/guessing well), but the adaptive portion of this test took that skill away from me.
I used all the old study books (baron, petersons, etc) and the one new book that says it is specifically for the ASTB-E.