When I first started watching Akagi, I didn't really like the graphics at all in this anime. Everyone looked really similar to being the same and it just wasn't that great. The more I watched though, the more it went with the anime in a whole so I appreciated how everything looked the more I watched it.
After you get a few episodes in, it will suck you in to where you will want to watch the next one. Of course a guy who can look death in the eye and not flinch is interesting enough but using Mahjong as one of the tools. Mahjong isn't the soul basis of this anime but they gamble a lot so it revolves around the game. You'll see other aspects of Akagi facing off death through out the anime to show the type of person he really is.
I couldn't really learn how to play Mahjong from this anime, so if you're looking for an anime to help you in that reguards, don't count on it with this one.
Now to talk about the ending. It gets really good and it really builds you up but towards the end, they repeat stuff repeatedly over and over again. You'll find yourslef saying enough already and get on with it. It gets old quick.
They do a very good job of buliding up the end and you're pumped up but then you'll realize this anime ends at 26 episodes. They cut it off and you don't get to see what they pumped you up for this whole time. It is truely utter crap. They should have quit repeating stuff and spent more time coming up with a good ending and not end it with a lameness. That just kills this anime for me.
So if you can deal with what I've said above, you'll enjoy it to a point but in the end, you'll be disappointed overall as it could have been a top notch anime.