Only an idiot would try to build a deck with that tool. But it looks quite suitable to "go all day" for the tasks it was designed for. Small cabinet hinge screws, opening up controllers or other electronics boxes, etc. Anything less than a 2 min charge would be great, however short the run time.
Typical cabinet hang, you have to remove the doors to hang them. Either the doors interfere with the clamps, or you just get tired of whacking your head on em. Generally you do have to have a second weaker screw gun out just for the cabinet screws, or you go crazy adjusting your big one back and forth all day, so you don't wreck the little hinge screws.
So it's remove 16 small screws, hang a box, put 8 back, remove 8 more, hang a box. Definitely takes longer than 60 seconds to hang a box.
I'd have loved one of those, back when I built houses. The NiCad one I used would not go all day, even if you put it back on charge constantly. The charger was just too weak and slow. So it generally took two of them to go all day.