It is not a replacement for something like an Aim or PDR if you want to do deep data analysis. However, it is really good at giving live feedback while on track which is super helpful. It also does a nice job of giving you suggestions on areas to focus on next session without ever having to sync data or open a laptop.
I made a couple of videos that might help.
This is an on-track session recorded with the PDR but you can hear the audio suggestions as I paired it to the stereo via Bluetooth.
This is a walk-through of the after session debrief.
Last, this is what the video looks like that it produces. It's nice quality but doesn't have a data overlay like PDR.