I've never used sleep on my laptop. I always have the lid set to 'do nothing' when closed (i.e., stay on and keep running). In the past I gave up on using a macbook for many reasons, but a key one was that I couldn't keep the machine on when closing the lid. I can't fathom having to reconnect terminal sessions or other similar connections every time I want to move from one meeting room to another. Carrying my laptop awkwardly with the lid open between rooms just seems silly. I just close my lid and let the laptop keep running and then hibernate at the end of the day, resuming the next morning. True instant-on, and no downsides to me.
It's a failing that I need to pre-empt every situation where I don't want the machine to sleep and run a tool to prevent it from sleeping, when I could usually just say 'don't sleep when I shut the lid'.
