Yes, when DCRainmaker says it's 'totally unusable' you know Wahoo have got their work cut out ... As a long time Bolt user, I'm not surprised. I'd buy this in a heartbeat, if only for the better screen and colours, except that Wahoo continue to royally screw up their software, always breaking two more things when they fix one. My Bolt no longer syncs with the app, and no longer uploads rides to Strava etc - I have to do it all manually. This has been going on a couple of years, there are hundreds complaining about it on the Bolt forum, I logged it again with Wahoo a couple of weeks ago, they said they are 'working on a fix'. I'll hang back and see what updates DCR reports.