It grew from a nice Owncloud fork into a do-it-all groupware solution by adding on more and more things without really improving the basis. Each version the performance gets a little worse, syncing gets stuck more often, etc.

Opencloud looks or at least looked good as it started out as an Owncloud Infinite Scale fork, but if course they’re adding on more and more groupware stuff without improving the core first. Maybe we’re doomed to witness the same circle with each solution, who knows.