This was my first mirrorless camera (micro 4/3), and I'd surprised how well it compares to my older 550d and my newer 7dm2. The lens quality on this camera is top notch. It easily beats my older 550d with 18-55 kit lens, and seems as good as as my EF-S 17-55 f2.8. It also has as good if not better low light noise performance compared to the 550d, but not the 7dm2.It's not pocketable in anything other than a jacket, but I think it's one of the smallest cameras with the micro 4/3 sensor. The lack of a pop-up flash was a concern, but I found I rarely need it. I do not think there is flash exposure compensation, or at least I haven't found a way to access it from the Q menu; the setting is blacked out and inaccessible in M, S, or A modes. Also the exposure compensation dial does nothing in manual mode. You have to be in shutter or aperture priority, or P mode for it to work (or i auto mode I think, I've not used this mode yet).Auto ISO in manual mode works fine however. I usually shoot in manual with auto ISO so this wasn't a problem. However since I can't adjust exposure compensation, I've found it easier to just shoot in shutter priority or aperture priority as the need warrants. Some have said the i Auto button is easy to hit by accident; I haven't done so yet and it's hard to see how you would do so without being clumsy.The focus on this camera is QUICK! However it misses, focus on macro a lot, but manual focus with peaking works wonders. I can't seem to find a way to recenter the single point and single area focus points/areas, so I mostly keep those points/areas center by default. I hate having off center focus points/areas by default when I turn the camera on, so I focus and recompose leaving the points/areas centered. The multi-area focus mode doesn't always focus on what I want, so I don't use it often. Image stabilization lets me shoot 1/15 at full zoom, you still have to do your part, but it works well.I've used the GPS logging function that comes with the Android app and it was easy to sync my phones GPS data with the photos taken. The camera did not want to pair with the app using the QR code. I had to manually connect the phone to the camera WiFi SSID. Once paired, viewing pictures was fairly quick, and remote view and operation worked very well. Although I admit I haven't used it since the initial testing.The camera is build very solid and is easy to use one handed. It feels like an expensive camera should. The electronic view finder is fast, doesn't skip when panning, and overall looks pretty good. I haven't noticed any color splitting (Each RGB color supposedly refreshes sequentially in the EVF). Battery life is great, for me at least. I think I'm easily getting around 400 - 500 pictures on a single charge while using a combination of LCD and EVF.Unfortunately my first copy of this camera had about 5 stuck "hot" pixels that appeared in the RAW files and were visible through the electronic view finder, although to be fair you had to look for them somewhat, but once you found them your eye would see them again them each time. However after loading the RAW file in LR5 they would be removed. I'm guessing the map out data is included in the RAW file? My second copy seemed good, however I still found a stuck pixel several weeks after owning the camera. Again, these do not show up in the final picture and are mapped out in the RAW file.It shoots 4K video at 30fps. I don't have a 4K monitor, so to me 4K video looks the same as 1080p video :) But it's nice to have. This camera does not have a mic input, but I've used an external mic in the past so I'm ok with that.Finally I wish it had more megapixels. You can't really crop well when you have 12 megapixels. And at farther distances you lose a lot of detail. This camera could easily replace my DSLRs as my walk around camera for distances 15 feet or less, and it's a great indoor camera.