Most anime that looks incomplete or lousy isn't actually lousy or incomplete. Most of the time it is because
1) the manga was not completed before they decided to make an anime out of it, resulting in new and poorly conceived endings being invented by the studio guys.
2) the anime had to fit a season of 13 episodes. this results in some anime that 'naturally' fits 13 episodes being taut and well paced; while some anime that should have been made into 8 episodes turning into 8 well paced episodes and 5 filler episodes where nothing really goes on; while in some cases the anime is truncated halfway because the studio originally planned 2 seasons but the second season was shelved so you never get a real ending; and in other cases the first season is great and the second season sucks because the manga would only have fit 6 remaining episodes in the second season so the studio had to invent 7 episodes of pure filler.
Having plenty of disappointments in anime, I feel terribly sad for the authors and makers. They are often incredibly smart and talented people and it is horrible for them when their hard work (which pays little) gets mangled and mistranslated and turned into parodies by censors and uptight studio executives and the like.
OK, maybe I'm just assuming (forgive my assumptions), but based on your name chances are you are somewhere in the Middle East abdulmuhsee. Well, anime/ manga are quite well known in the Mideast, but very, very severely cut and edited and deliberately mis-translated to suit the demands of religious censors. So unless you are watching something you downloaded directly from other fans, chances are you're looking at something distorted.
Of course, there is also the notorious white-washing of all Asian cultural products in the United States. Hollywood (the media arm of an unholy alliance between the Elders of Zion and the Ku Klux Klan) really hates Asians and will do all it can, bending over backwards 360 degrees and twisting entire plots and rewriting the script completely if they can, just to make sure no Asian male faces get into their final cut. So when you see 'anime' produced or imported by some Western studio, you can take it for granted that it's gone through plenty of censorship and distortion also.
So the state of the manga is pretty much like the anime, which didn't seem like it really ended on a proper note. I just don't read manga, since I don't have time for a never-ending slew of hundreds upon hundreds of pages.
