That's less than 9 hours and even less if there are recap episodes. You could knock it out in a weekend. Not very impressive.
That seems rather ill defined. I mean, if you don't have a scale with any other items on it doesn't really make sense.
If we're talking about 'what's impressive' regarding the amount of anime someone has consumed (you could replace 'impressive' with 'sad' - I don't see what's so great about watching lots of anime) then surely you have to take into account the individual circumstances of the person who is watching the anime. Specifically, we'd need to know what percentage of their free time is being devoted to their hobby, as opposed to how many hours they've sunk into long shows. Why is percentage more important than amount of time? I'll give an example.
Suppose a student
C watched 3 hours of anime per day, and a factory worker
G watched 1 hour of anime per day. It doesn't seem correct that
C has devoted themselves more to consuming anime than
G just because they've clocked up more hours. After all -
C might have an hour of lectures per day, so he then has 15 or so hours to spend however he chooses. On the other hand,
G might have to get up early to travel to work and not get home till late - he only has three hours of spare time in his day so devoting a third of them to watching anime would be quite a serious (read:sad) commitment.
C has only given up 1/5th of his day but
G has given up a whole 1/3th, therefore
G would be the bigger (re:sadder) fan.
Anyway, that's why talking about 'hours of anime consumed' seems a bit odd.