As a "combo Mission Control + Ride" I see some new features:
- Lock menu has the option now to autolock the bike whenever the app isn't connected, making your phone sort of like a key.
- The "tune" menu is more user friendly.
- Map that displays while recording looks new. I need to take it for a ride to see if it's better
- Record screen is now split with stats and map instead of that being tabs
- The configuration of the TCD screen shows you exactly what you'll get on the bike
And some missing features:
- It doesn't show new records like the ride app (e.g. new longest ride, new 5 min power, etc)
- It doesn't know your max heartrate or FTP and the heartrate/power ride percentage displays are missing.
- It doesn't have a dark mode
- The old app had settings for auto-pausing ride recordings when you stop, keeping the screen always-on, etc. I don't know how that will play out while recording with the new app because I don't see settings for that.
The new graph is a good idea, but the performance is terrible and there's no zooming so it was useless for analyzing a 30 mile ride I did yesterday.
It does not like to coexist with mission control, so don't try to open both (they won't both connect).
It also froze up (seeming to lose connection to the bike) fairly quickly while I was playing with it and I had to force-stop it. I hope it's the weird combination of things I did (playing with the tune, locking and unlocking, etc) but the real test is a full ride record.
If it can record rides okay then I would consider it a 100% replacement for Mission Control (for my Tero X, see other posts above re older bikes) and maybe a 90% replacement for Ride