The SAB problem might be overblown, but when it happens to you it becomes significant. It's also not very reassuring when the repair does come (and mine so far seems to be excellent) that there is no acknowledgment of what kind of problem occurred, no warranty extension and reports of it happening a second time.
My X100 is now working amazingly well after the SAB repair and I'm now on firmware v1.13 which also has improved several aspects of the camera. I use mine daily as I'm now on an extended trip.
I compensate for the fixed 35mm fov lens by making quick panorama exposures when necessary to build out the view. The one below is from yesterday.
The following is an ISO1600 sample - single frame. When I started using this camera I imposed a ISO1600 limit on AutoISO, but quickly found that another two stops cleaned up just fine in LR3.
As you can see from this full-frame example, the X100 exposure bias that utilizes the f/2 full aperture choice is entire acceptable.