M.R.
Blue Ash is very close to Cincinnati and it is fantastic - great community, outstanding schools (Sycamore). Easy access to highways and centrally located. I lived in the Cincinnati area for 27 years before moving to Chicago. The Sycamore school district is one of the best, if not the top public school in Cincinnati. It is also one of the more expensive areas in the Cincinnati area as it is a more affluent area.
Feel free to PM me if you have other questions. I still go back to Cincy like twice a year and have friends who live near/work in Blue Ash.