Here are some of my stats, numbers are not 100% exact.
Physical Devices: ~200 (40% z-wave / 40% zigbee / 20% wifi)
Virtual Devices: ~125
Modes: ~12
Routines: ~15
webCoRE Pistons: ~130
3rd Party Integrations: IFTTT (limited), Amazon Echos (8 or 9), Nest
My current issues are limited to…
1 - The SmartThings app is too slow, so slow it is useless to me on a regular basis. For configuring something it is fine. Getting to “things” to turn stuff on / off, check status it is slow. The new dashboard is useless.
2 - ST is missing schedules on a daily or every other day basis.