I enjoyed it. The first one with Helena Bonham Carter imho is not the best so don't judge it on that episode. I find Greg Davies funny (ha ha) and had a number of laugh out loud moments watching this series.
No sorry, I can't stand blood and guts and am not very keen on detailed views of crime scenes. It didn't appeal to me at all. Just been watching an old Scotland Yard series where you never even saw the dead person, they were always covered up so that only the Police saw them not the viewers.