We have 100 users on Exchange 2010. Want to try out O365 with 10-20 users and if for some reason it does not work out, pull back. Couple questions. Is it better no to setup Hybrid and make the connectors manually and if we don't want to move forward remove it, or setup the hybrid from the begging and then remove it if it does not work out. Is it easy to remove hybrid configuration so we can stay on prem if we decide to? What are other consideration I should think about?