X-S1 is a really nice camera and has the zoom (manual) and good picture quality. The EVF can operate at 50hz, which is enough to keep up with live action. It is a bit large and heavy, as you know. While I haven't noticed any problems with mine, the autofocus may not be able to keep up with BIF. Ozzie Traveler has mentioned problems with this. I have trouble keeping the complicated settings straight, and don't find the menu system very straightforward. Possibly just used to other ways of doing things.