I have an X-E2, X-T1, and an X-100T. Overall I think they are great cameras with excellent image quality and they are more fun to shoot with than my DSLR. The battery of my DSLR definitely lasted longer, but I understood the X cameras wouldn't have the battery life going into it. First, the fact the camera is mirrorless means the sensor is always on. Second the batteries are physically much smaller and lighter, though I haven't looked at capacity ratings. I bought wasabi batteries for the w126 battery and two other brands for for the X100T. Most of the time the batteries do well overall, but I think it fair to expect only the rated number of photos. I have noticed some rapid draining recently with the X-T1, and was trying to figure out what it was that caused it. I'm not sure if it is related to the new firmware or the extra warm temps we are experiencing. I had 2 Wasabi batteries deplete within 50 images, but after I recharged them, they seemed to be back to normal. Normally they are about equal to the Fuji batteries. I don't mind carrying a few extra batteries over the extra weight and size of the DSLR. I've found the battery life of the X-100T, which I've heard people say to be worse than the other X cameras, to actually be better.