I had a MX400 and a Trex XL, when the Trex 450se V2 came out I bought one of those. I liked that so much I sold the MX400 and the Trex XL and bought a second V2. I thought the MX was O.K. but I liked the Trex better. I thought the quality of the Trex was better and easier to work on. I haven't owed a Mini Titan but from what I've seen and heard it would also be a good choice.