I like Akagi. That doesn't mean I'm thinking that my opinion is the only one that's valid. I can see why people don't like it - there's a lot of deus ex machina in it, but I'll let that slide, because whoever's doing the narrator's voice is good enough for that. It helps knowing mahjong (ma-jan, mahjongg, however else the fuck you'd spell it), at least the basics.
That said - yes, I can see why some people wouldn't enjoy it. For me, it works though. It's a different way of telling the story (first anime I can think of with an actual narrator?), I love the style, and... I think that's it. Story-wise... yeah, weaker stories overall, compared to other shows, but eh, it's not why I'm watching it.
I'd say all sports/competition anime boils down to what Akagi's using: expressions, reactions and counter-reactions, with someone (usually a bystander) explaining for someone else/thinking to themselves to explain for the audience what's happening and why. Prince of Tennis is a good example of this, and so is many shounen stories - Hunter x Hunter comes to mind rather easily, and newer series such as Bleach uses it as well (although in my opinion, Akagi is loads better than Bleach)
Whatever. /a/ can't ever discuss anything like normal Anons these days. People keep forgetting that opinions are like assholes - everyone's got one.