You may want to conduct a pilot deployment to evaluate Office 365 before committing to a full rollout. A pilot will enable you and your team to test drive the key features Office 365 and assess various factors such as performance and accessibility.
A pilot can also help to test migration scenarios that are dependent on your current environment. Issues can then be identified in advance and allow for better planning of the implementation.
A trial Office 365 subscription for 25 users is free for 30 days. As your Microsoft partner we can help you extend the trial if necessary.