This was my second day using the Sony RX0 and as a stand alone camera it is not easy to use especially if you have fat fingers or is your eyesight is not good . Based on my experience to date I would suggest that you really need to control the camera using a smartphone and it needs to be mounted on a tripod which to some extent defeats the advantage of it size.
I should say that I actually like this camera.
One problem that I have noticed is that there are many online reviews of Sony products that are usually described as "Hands On Review" which actually means that the reviewer has attended a product launch and has used the camera under controlled conditions.
Unfortunately such reviews give you no idea as to what the camera is capable of and of course they never mention any problems other than trivial issues. Because of this there are now two camps
 people who love Sony products
 People who have nothing good to say about Sony.
In case you are wondering about me ... I spent about five years switching from Canon to Sony but that does not mean that I prefer one company rather than the other because in reality I had decided to switch from DSLT to Mirrorless and the company name had little to do with my decision. A few years ago when I arrived at an event with my Sony NEX-7 or A7RII I found that in general that DSLR users were very dismissive complaining about silly things such as battery life [which was an issue if you did not bring four five batteries with you].
SECOND DAY USING THE SONY RX0
FIRST BATCH OF IMAGES FROM MY NEW SONY RX0
SECRET GARDEN - A PUBLIC PARK THAT IS WELL HIDDEN
WALK AROUND THIS CHURCH AND THE DEVIL WILL STEAL YOUR SOUL
BIKE RENTAL DOCKING STATION IN DUBLIN