Superficial person that I am, the artwork and style of an anime series is really important to me. Gokusen's tended to make me twitch. Lips! Lips! Arg! They look like someone tossed rubberbands onto their faces:
The female teacher's lips always reminded me of a blow-up woman's mouth (which is sort of fitting, as she was a little sexpot) :
luminata mentioned the dog who thinks out loud, but the tail that bothered me way (way way way) more than the thinking out loud... and more than him wearing a jacket and walking on two legs. :p Why does he have a horse's tail? With a pink bow in it?
The adult male characters (her mob family) reminded me a whole lot of Rock Lee and Gai (of Naruto) -- dramatic crying all the time over every emotional scene, posing, sobbing, all that. It was amusing, but after six eps of it it was a little much. (Probably my fault for watching it all in a row! Spread out it might have been better.)
I had a somewhat bigger issue with her students... or rather, all of the characters who were dumber than used kitty litter (which seemed like most of them...). It's a little hard to identify with characters who are just so stupid they miss things that are happening right in front of them...
One last little point: Why would the leader of the Japanese mob want to be a highschool teacher? (Yes, I heard her reason in ep 6, but it ... well, wasn't very believable to me). This was a very amusing series, but if I couldn't believe that basic fact of it, it made it hard to fall in love with it. :}
Eps five and six got a tiny bit more serious than the first four eps, and because of that I liked them a whole lot more. If the whole series had been totally serious, I think I could have maybe fallen in love with it. (A woman leading a Japanese mob/gang! That'd be a great story on its own! And her underlings so attached and loyal to her, that'd be perfect as a *serious* plot element!) I'm assuming the series is going to go on longer than six eps? Which would be a little odd, since the... um, spoilerish thing that happened in ep six seemed like it'd be a good ending point for the series...
Oh well, I'll download and watch any other eps, so thanks to mithas for the recommendation! (And sorry I couldn't love it as much as you did.)
Punch: Lupin III - The Castle of Cagliostro finally became available, and I'm grabbing it now. I'll be checking it out either tomorrow or the weekend. ...ugh, though it's an .ogg file, which are really hard to make work. Well, if I can get it to play I'll check it out.