Amazon Alexa confusion...

[fuudge]

Hey guys, I’ve just started using Amazon Alexa on my magic mirror pi and I’m a little bit confused with different options available. Currently, I’ve set up Alexa using this guide:
https://developer.amazon.com/docs/alexa-voice-service/set-up-raspberry-pi.html

This gives me a script to run a “sample app” which runs and listens to my voice commands in the background separately from my magic mirror app. To my understanding, this is just an example for developers to get started and to build their own Alexa devices, but should be OK to use for my personal magic mirror long term?

Also, there are different options like AlexaPi client or using Alexa magic mirror module. Aside from magic mirror integration (in case of Alexa MM modules), what are benefits of using those over the above sample app? Are there differences to underlying software?