@RenyMathew if you are looking at “one-click” camera type operation, Im fairly impressed by the ThetaV but if you really want the best one-click i would take a look at the Garmin VIRB, its got higher resolution, but more importantly it have a build in GPS and you will not need to open your smartphone connection to record location data. I find that to be a rather important feature.
For paying clients I generally shoot with a m43 camera (GX8 in 3 shot HDR mode turn off auto-registration) with a LensBaby fisheye, shooting 3 shots for easy stitching. simply because it provide a much higher quality file than the single shot cameras.
I have a Panono on order, but from what I see its best suited for shooting in areas without close up details… when everything is said and done, its very hard to stitch images with nodal-point error and even throwing bunches of cameras on a unit still have a off-set error where objects of different distance cross… you see little of this in the forest, but if you are in a restaurant with a table and candle light at 0.5m then the offset error for either background or front will be significant, so I don’t feel i would rely on the Panono exclusively… but its probably a great tool along with the m43 camera for areas that it excels at. its got rather low dynamic range so for commercial use, probably plan to shoot it in HDR mode and punch up the contrast in post as required.
So there you got it. if you are looking at one camera, take a long look at the VIRB, and depending how you feel about the price, dial back requirements, looking at the Mi and the Theta, and probably plan on getting a DSLR type rig for commercial shoots, once you get paying clients. just my 2 cents, your mileage may vary.
Bo