Perfect for getting started.
You have a specific task in mind – you want a single programme to run continuously, or you need a Windows desktop that you can access whilst on the move. As long as you’re working with the server as a single user and no application demands an excessive amount of resources, M is your starting point.
This is when it’s worth making the switch
As soon as you need to run several programmes simultaneously or have colleagues working with you, switching to L makes sense.