I agree, the new app is a big disappointment, as is the change to a new backend.
One thing I have really loved about ST is that I could set things up years ago the way I wanted it, with lots of Routines and a few SmartApps, use a couple of virtual devices, my own ThingShield to integrate my hard-wired door sensorts, etc. Then, don’t even think of it for years, things are just good, except for the occasional power or Internet outage, which isn’t ST’s fault.
SHM is one of the best features of the classic app, and now I will have two competing monitoring features, one in each app. Each with separate geofencing setups, and possibly interfering with each other.
Also, I’m eventually going to have to switch to new app, since the classic one will apparently be shelved sometime soon. The new app wastes an insane amount of screen space on elegance rather than function, and with a completely different UI paradigm, which is not that efficient (more clicks) and several concepts are renamed for no apparent reason.
The classic app may not have been winning mobile app design awards, but it’s functional.