I don't know where the whole 'lung-busting runs' into the box thing comes from. There's actually very few goals where he's done that. A counter-attack goal thanks to a perfect Coutinho through ball against Villa 3 seasons ago, a ridiculously lucky one (defenders sliding clearance deflecting off him into the net) last year against Swansea, and maybe one to get on the end of a cross in Europe last season. That's 3 goals in 4 seasons under Rodgers and Klopp where he's largely been the first choice box to box mid.
What he actually is good at, and does regularly, is get into positions to shoot from the edge of the area. Places himself well when the play is busy and he's almost always an option there. He's scored a few from the edge of the box for us but it's his wastefulness in the area that's most grating. Too many very easy chances being wasted by him there. He has no composure and his technique is consistently horrific. It's irritating that none of our coaches have fixed this. It's the same error every time, lean back too much, mistime the ball, usually sidefooting it skewing wide of the keeper's right or high to his left.