The ease with which you can move from an On Premise environment straight over is amazing! I didn't even realize that was possible until we started using this product for our new Office 365 deployment at my work place (it's not just limited to MSO). We've been able to deploy much faster than if were doing everything manually - especially when there are multiple users involved who need access immediately after setup has completed successfully. There really isn't anything i dislike about sky tap as far as functionality goes but maybe some minor UI/UX issues here & there would be nice too see improved upon by them? Make sure they understand what type of traffic will flow through these servers before purchasing so they know how many cores etc needed depending on usage patterns. Deployment time reduced exponentially since all code changes happen automatically once deployed via SCCM.