The M32 has been an absolute breakthrough for thousands of satisfied users...though it does require a lot of background knowledge to use it to it's fullest potential.
ProAudioDVDs' David Wills spends 2 full hours going through every feature of the M32 workflow from Input Channels to Advance Routing with DCA groups and everything in between. There''s also a section called Mixing 101 where David goes through with easy to understand animations to see how a mixer works and how to use subgroups, EQ, Compression, Effects, Sidechains and Monitor Mixes so you can mix like a pro.
If you have been getting frustrated trying to learn your M32 from just using the manual, then sit down, grab a cup of you favorite beverage and look over the shoulder of a professional audio engineer with 30 years in the business putting your M32 through its paces.