Great! I like to go through phases of collaboration, collaboration always takes longer than working by myself... but collaboration always brings out something new, new things learned, new techniques, ways of doing things etc.
Last year our collaboration group worked in bandlab, it allows online projects to be worked on, saved, stems exported etc.
Also allows people to see what fx have been used, chains, etc.
One of the challenges was 'creative differences' but to help this we chatted in a twitter group to make sure people knew what do to, what not to do etc.
It was a democratic process, and group names, artwork etc, all voted on.
I thoroughly enjoyed the whole thing!