I recently got the update to TA to version 4.0, and I can't say anything bad about right off. The Circuit selection screen makes it easier to pick the right mode, and the custom track setup screens make it easier to setup the start/Finish line; before you had to stand ON the line to get the position set, which is not permitted or dangerous to do! Seeing the GPS signal status along the bottom of the screen was a good idea, as well as the alignment marks on the preview screen, and the manual start/stop recording button.

There are many other small improvements or modifications, but you will recognize all the usual TA session recording features.

I can't say its great in general until I get to try everything, but I think it's an improvement over the earlier version. It took me a while to get comfortable or to even understand how to setup the custom tracks before, but I could do it all, given enough time.