For a high end raider like myself, logging in at 95+ percentile rankings:
Pros:
Best customization
Unreal update timing for his large amount of CRs
Actually reads feedback in his threads and makes "todo" lists for suggestions
Follows simcraft rotations
Doesn't even require you to go the extra mile with logs, he understands completely how his CR's work so if you say "Cleanse isn't being used in this situation" he can pinpoint the issue without the need for logs
Cons:
Some specs in his CR's can get behind the others in terms of support
Since he's always got a list of changes to do, some suggestions might take a long time to be implemented