I bought a Bolt late last year. I'm pretty happy with it. I can send a Live Tracking link via email or text (i usually use text message) to a buddy so if my little blue dot stays in the same location for hours on end, he's to notify someone. plus to rub in the fact that he flaked once again on another fun adventure ride. lol
I use Strava (mainly for the social aspect and looking at numbers later), and i had the premium plan gifted to me, but i prefer Ride With GPS for it's free route building feature. I will not re-up once the subscription expires. And I get turn by turn notifications on my Bolt from the preloaded RWGPS route.
I bought the speed and cadence sensors mainly because i read the speed sensor helps the accuracy of the head unit, though it seemed to work fine without it too.
eric/fresno, ca.