Schweser Notes - Complements or Subtitutes to CFAI books

Hi all, I am a bit confused as to whether to read the CFAI materials or to use schweser for Level 1. I find the CFAI books very very interesting to read and understand. As for Schweser, It greatly summarizes the readings but I doubt that it misses some important points. Can you please advice as to whether Schweser is really enough for level 1. Or should I use Schweser notes and EOCs from CFAI books? I am really confused as CFAI itself mentioned that prep providers should not be used as substitutes to the CFAI books. Thanks