I haven't used an Id, but have used Volumio and MC for Windows and Linux for a few years.
If you like to tinker, get a few micro sd cards and try different options:
Volumio is a simple light OS for music listening with 1000's of internet radio stations built-in and organized; it will play from your MC server as a client, works as a renderer, etc. and makes a great companion for MC or stand-alone for a bedroom system. It's capabilities are somewhat limited, but it does things pretty well. Everything is accessed through an internet browser.
Install Raspbian or Dietpi and then install MC for Linux. This option is fairly straight forward but requires some knowledge of Linux for things like network shares, etc. This setup expands capabilities but would require more initial effort and maintenance, and a Linux or master license purchase.
If you want to reduce tinkering get the Id card, which is already licensed and supported here, you can spend more time listening to music.