Hi Thomas.
I know that I am not very normal and in my “literary tastes” are the motorcycle mechanics manuals. I don't think my opinion will help you decide, but since I like manuals so much...
To be brief, I will say that I love to work with the cleanliness and simplicity of BMW workshop manuals, I am very well with these.
With the V max I tried Cyclepedia for a year but I don't always have internet; it's worth paying for the full subscription if you always have access. I bought the Clymer because I didn't have any and I had already used some Haynes for other motorcycles and cars.
Direct differences (my impressions):
Clymer have a smaller format and better paper quality (Haynes looks like a yellowish newspaper), larger letters (if you have a lack of sight) and both well illustrated. The clymer gives the impression of being made as for people who "need more explanations" (that's my impression...) and you feel maybe is more complicated, but more clear with the format and quality.
Both fulfil their function perfectly. Ciclepedia via tablet, computer or phone is really a step-by-step photographic guide, perfect for doing specific work, very practical. Clymer is property of Haynes, maybe somebody of them can explain the real difference in the concept, because prices are near or the same (I never compared information inside both vmax manuals)
I personally use the Yamaha workshop manual, I think that with this one you can do everything. I combine the original edition in English with one in Italian from 2005 and I managed to do everything. For the mysteries I consult the forum and pay attention to the gurus we all know.
Greetings to all of them, beautiful vmax community!