Eddie is very responsive, almost immediately after you message or email him. He is very knowledgable, and the audio lectures are amazing! I love how it s not just an audible book of word for word audio, but instead it s an actual lecture with the chapters explained by a professional and examples are provided to clarify it! I highly recommend fitness mentors for any program, but definitely for the NASM CPT; they have clarified so much for me from the book!