Best Way For SQL Server To Oracle Connection

We are in the process of setting up some type of interface between 2 applications that utilize SQL Server(ours) and theirs which utilizes Oracle. These servers will actually sit in the same server room. My thought was to take the simple approach of each DB setting up views needed by the other and assigning a user and security so the other DB can look at the data. We currently do this in house. THeir solution is to use a somewhat sophisticated mesaging system which will pass XML information back and forth between the systems. I hate to take the simpleton approach but why go through all that trouble where a simple view not only provides the same functionality, but is a dynamic as it gets. If anything goes wrong with the messaging system itself or problems with a specific message this needs to be resolved before the data is available. Non of this is a problm with the view. Any input from anyone who has this in place(either solution) appreciated. Or any arguments against my point of view