Got to play with one this morning and really liked the body size/weight (not much more than an X-T2), the rear LCD, and the buffer. I am not sure how many frames it holds, but I kept the shutter going at 15 fps for maybe 10 seconds with raw+jpeg - made me go "ooh". Also, you can charge batteries without removing them, the power lead attaching to the body and charging batteries in the grip as well as the body. The grip is much bigger and makes the whole unit feel quite tall which was OK, just. he IBIS was hard to gauge and I didn't notice a lot of difference when I switched it off. Quite tempting, though I am more immediately attracted to the 35mm f1.4!