The IFR Rating Ground School and Test Prep helped prepare me for the knowledge test. However, you are going to have to really study. You can't just try to memorize the questions and the answers from the test prep and then take the test. The FAA test questions are no longer identical to what you learn in the class, so they really test whether or not you actually understand the material.
Lima F.
06/25/2018
Instrument Rating Ground School & Test Prep