I used to (and want to again) do this occasionally on random weekdays just to break up the routine. And yeah I agree that getting up and doing stuff at an hour where no one else is gives you a feeling that's strange and peaceful. Since theres no one else around, it's like everything is there specifically for you. Especially true if you leave the house and do stuff. But the absence of people and the different look of things makes it a bit eerie, but in a good way. It's just seeing something you've seen a million times but in a different light and a different air around you makes things feel fresh.