I didn't have either Qvault or Achiever so I can't say what is better. What I can tell you is I didn't take an anatomy course either and I scored a 28 on the biology section, so that shouldn't hold you back! The biology section is what I was most worried about so I spent a ton of my time studying it. My main resource for biology was destroyer. If you know the answers, the definitions to the answer choices, and the answer key.....you will score well on the test. Focus most of your time and energy on destroyer for the sciences. Its what I did, and what many of my friends did and we're all in dental school or will be going to dental school.