My x100 is one of the best cameras I've ever used. It's definitely not a point and shoot any more than a leica M is a point and shoot. If I give the camera to my girlfriend I have to completely pre-set the thing otherwise she won't get a good photo from it.
Yes it's a little quirky - you have to know how the camera works to get the best from it, but with just a little time and experimentation it really blows you away with how good it is. And you really do use it just like a rangefinder - hence the rangefinder tag that seems to follow it around. The ONLY difference is that instead of using an RF patch to manual focus, you use an AF patch to spot focus. And to be honest, it's probably quicker than RF focussing 8 times out of 10 anyway.
Also, I have to mention that I love the 23mm fujinon lens on the x100. Considering it's 35mm equivalent, an M mount fuji would need a 21 or 25mm lens to equal a 35mm equivalent. That leaves you with the zeiss ZM f2.8's, the slow voigtlander 21 and 25, and the horrifically expensive 21mm summilux. Considering that the 23mm f2 fujinon lens is a SUPERB performer, and it's included with the $1200 body in the x100, I'd prefer proprietary fujinon lenses for this new interchangeable lens camera any day of the week. You can bet they'll perform better and be much cheaper than adapted M mount lenses ever will.