They sound different. Listen to the clips. I have owned both. I prefer the Timmy. The BD2 colors your tone more. The Timmy allows you to hear more of your amp tones. Listen to clips and you be the judge. If you buy the Timmy and don't like it, you can easily sell it and get your money back.
I would say get the on Timmy waiting list. You do not pay until it is ready. Make your decision later.