Ceph is the future
My experience is only with Ceph, I've never actually ran anything in production with Gluster.
We have about 10 PB of Ceph in production now and we're doubling that to about 21 PB by end of this year. Ceph is incredibly stable for object and block (we use it exclusively with OpenStack).
Ceph is not yet there for file, so if you need stable scale-out storage for file only Gluster is probably a safer bet. Inktank/RedHat have been running CephFS internally for over a year and a half, but they do not yet have a date for when they'll start supporting it. If you are a small shop, you should definitely give it a try.
There are plenty of ways to setup Ceph, if you're familiar with Ansible, have a look at this playbook:
You can spin up something with Vagrant to play with.
Hope this helps.