Yes the campaign might be short, and the environments a little dull, but the action and customization keeps you going.
The graphics on some levels do seem like the producers have just had a cup of tea and a biscuit instead of paying attention to what they are doing, but this lonely seems to be apparent on such missions like when you have to destroy a base in the middle of a sandstorm, this gives you very little visuals and gets you rather frustrated because you can hardly see. However when you are doing missions which include annihilating a anti-satellite cannon (which after you bombard it, makes a nice explosion of kojima particles). The highlight of the visuals has to be the actual mechs, which this time, look astounding more than ever. Especially astounding are the boosters which more a very nice glow highlighting the look of your Next, especially in the dark missions.
Unfortunately this game is rather short and could be improved in many ways. And hopefully the nice people at FromSoftware will release some extra content.
Altogether a very good game, if a little short.