Solid 7.
IBO is loosely inspired by a child militia killed in the Pacific War. Flips a fukked up history chapter into a story of kids creating their own future entirely by choice. A lot of them die. a lot of those deaths are tough to watch. But I appreciated IBO's willingness to let kids be overwhelmed by force and face the consequences of their decisions as they took on more and more responsibility. No one really feels that untouchable for better or for worse.
The combat in IBO is relatively primitive for a Gundam. Not a lot of laser beam spam or giant robots doing backflips at warp speed in space. Lots of hacking and slashing, brutal style fighting. Imo this is a positive because it makes the fights easy to follow compared to other Gundams where there's too much shyt happening on screen to really process it all in a single take. Simple is best sometimes.
Mikazuki is a total sociopath. No conscious. Doesn't hesitate to kill. Lives for battle and really nothing else. I remember one scene where some enemy was making a long winded speech about honor or something lame like that. He interrupted it midway to slice the bytch in half and continued on with his business. Sometimes he's criticized for having no personality. But that would be the point of him being detached from all emotion. one of the better Gundam pilots as far as raw combat goes.
My least favorite aspect was the focus on politics and strategy. Just kinda tuned out during a lot of those segments. Maybe it was most of the major characters being teenagers made it not all that convincing to listen to. Mikazuki succeeded with brute strength more so than instruction to win every fight so I didn't really care too much about pre fight gameplans. Some hate the ending because the "villains" get away with stuff. but I'm not really sure Mikazuki and Orga aren't villains themselves. None of them are entitled to a happy ending or anything like that.
I'll give IBO an 8. Fun ride throughout. Doesn't pull punches. Fights are great. Mikazuki is great. Doesn't compare to something like MS 08th, but still really good in its own right.