I think there are 2 things to consider: 1) are you comfortable with meteor right now? Because it seems like a bad idea to learn new technology and build a product with it at the same time (if it is not the point of course) 2) do you think meteor is going to be supported in the long run? What are you going to do if meteor stops being supported?

I guess its a good choice if you already built something with meteor and you are comfortable with it.