I just wanted to say your approach is very refreshing taking the time to get the 'Trainer Twin' first to learn with is something many refuse to do before diving into that fancy multi whatever. Its great you first flights were so enjoyable and there will be many more..
Sounds like a good approach to me. I have a very nice Jack Stafford Twin Comanche sitting in a box on a cupboard somewhere, but I think I'll get a Twinstar as well to learn, even though it's a yucky ARF