I use both EchoSpeaks (ES) and Alexa Routines (AR).
For example, with ES and webCoRE:
If Kitchen Soundbar is Playing
Then connect to Bluetooth
If Kitchen Soundbar stays stopped for 1hr
Then disconnect from Bluetooth
My Soundbar will auto turnoff after a set time of inactivity. When on, it uses about 15 watts at idle (including the subwoofer). If it detect a previous connected BT device then it turns on and connects.
With AR, if doorbell rings then with Livingroom Echo speak, “Someone is at the front door”.
With ES and WebCoRE:
If Bedroom light is on
Iron is on
Bedroom lights witch is double tapped up
Then with Bathroom Echo
ES is definitely a useful App for Alexa devices and much more powerful than AR. However for simple Speak stuff then AR are easier to setup.