I enjoy cold brew for the reason that it is extremely little work.
Really, it’s all about timing, but if you prepare it at the end of the workday you’ll have concentrate ready in the morning, and it generates so much concentrate. The “work” is just grinding the coffee, letting it soak, and then filtering.
You can heat up cold brew, too, if you want something hot. As long as you don't boil it, it makes an excellent cup. I do this sometimes on short camping trips for the simplicity. And at home, if I have some in the fridge but the weather's cold in the morning.
Yeah, that's become my go-to for summer. I make one batch for the week - it doesn't seem to drop in quality over that time. Only equipment needed is a grinder (optional, really), a jar and a filter.