Sony Australia sent me the QX100 to use and abuse, I've had it for just over a month now and, despite initial "will this fit my lifestyle / workflow" I've come to love it enough to take it everywhere with me.
I tend to pop it into a thinkTank "Little Stuff It" and slip that into whatever bag I'm taking on the day - I always take a bag. That's just me.
It's a funny size in that, if you're not taking a bag it can be a bit annoying unless you have something like the Peak Design Cuff, which is mostly permanently attached to mine, means you can just have it on your wrist, or with a Leash, you can sling it / whatever. Use 'pollock' at checkout for 10% off... (Or don't, that's cool too) .....but when do you ever leave the house with some kind of bag?
One thing I see a LOT of on the www is people posting photographs of people with larger, pro cameras, but taking a photo with their phone... There's a reason for that folks - it's because we all want to share - immediately - if we're inspired by something or want someone to see something right away... The QX100 bridges that gap effortlessly...
Do you need to use it with a phone? No, and that's one of the things that "ups the game" for me, with the QX100... I can turn it on and use it as a camera without the phone - I can control zoom and shutter and that's it... There's a little window to check the battery level, too. Sorta refreshing, actually... Like my old Pentax but without any viewfinder at all - just what your eye and hand think, and you add that 'anticipation' back in - what shots did I nail, what did I muff... You won't know until you get home!
You stick the QX on a tripod / boom / light stand via the standard tripod mount and you can stick it wherever you like... Including above the trampoline...