I have the original X100 (still have it) since it first arrived in SG. I love the IQ and more enjoyable for street photography (size/weight wise) compared to my Canon 450D + 17-55mm F2.8 lens system. However, it is still very limited and not versatile compared to DSLRs.
Just bought the X-Pro2 and I can say that my Canon will go to the buy n sell section very soon. (Maybe the X100 too soon as I complete the set of lens I'm planning to get for X-Pro2)