After much research on this forum, I finally decided that the V1 was the best choice for me. I plan to use in my BMW Z4 Roadster and also use it for trips on my Harley Davidson Ultra Classic. This forum was great in helping me to decide between the V1 and the other close competitors. The arrows and being able to update the software/firmware vs recycle and buying new was the deciding points. It should be delivered this Thursday, so I am excited.