Another great thing is that it is PART of your Visor, not an ugly attachment. I'm able to take great pictures using Eye 2, even at poor lighting conditions. Photography skills play a vital role in picture quality, so it's unfair to blame the picture quality of this module if we don't know how to handle it. Keep you hands still. Don't take the picture as soon as you see it on the screen - give some time to the module to focus on the object.
Fluorescent lighting is great for indoor photo taking.
It's not quite suitable to close, fast-moving objects. Taking photos for objects is easier than taking portraits at poor lighting condition - perhaps skin and clothes are less reflective than other materials. However, there are only exceptional, and in most cases there are no problems. Of course I'll be happy to see patches for software upgrades. I do agree that it is expensive and there are rooms of improvement, but it gives you a lot of fun.