the 1st test is the toughest, i did terrible on it. After that, i was scoring 14-15 one every section except the hole punches. The hole punching are much tougher than the DAt's. I just stopped doing them after the 2nd test, no point. The angle ranking was also very similar to crack the PAT, its good to get practice with angles a few degrees apart.
I used the kaplan techniques and they worked great for me. Overall, it is very similar to topscore and kaplan online practice tests.