I've been a fan of Anime and Manga for a long time. I was attracted by the original story and technology concepts present in the original Gundam UC world (not GWing). I've always wanted to have a Gundam manga, so when I had the chance, I bought this one, and after a quite detailed inspection, I found the following topics very useful for the people interested in it:
As a manga, the artwork is good, but of course is at a lower level compared to, for example, the Clamp / Satoshi Urushihara works. But the consistency of the story is really good and the fact that the story fills only 1 volume makes it a best-buy.
And for the Gundam fans (minor spoilers), there are so many concepts developed here, that surely makes it interesting. For example to see the early experimentation of the Zion army on Newtypes, at a time when they weren't implemented for combat purposes yet. The setting of the story is in the early days of the war with the Zion, which makes everything much more interesting, and it's fun to see how all the combat units were "malfunctioning" GM's (don't expect to see a RX type here, they didn't exist at the time of this story).
So... my advice is... get it now, if you are a Gundam fan, because it provides some background information about the series. If you are a Manga fan, it could be nice for you, but there are more options, even based in the Gundam world.