I used the liquid image ego for years and they were great. One crash too many and I upgraded to a couple of GoPro's.
I have a Session and a Hero 4+. The quality improvement on both is huge and the one-click of the session is awesome.
The Hero4+ has been faultless but the Session has chopped in and out, missing a fair few laps!
I paid top dollar for the SD cards so I can only think it's not quite up the the vibrations of a swingarm?
Anyhow, for thw most part I love em!