HI,
i have a CX 740 and i'm fully satisfied with it.
If you have good Roll stabilisation, the BOSS is just some of the best stabiliser system available it will delete all small hick ups and jitters of the gimbal without giving you a wonderful " motion blur" effect..
For all other points, they have simple solution, also there is a LANC control PCB available to contrl recording and zoom ( pretty useful) with indication LED, and finaly, to make it simple: if you are not very used with deep setings of a camera ( which is my case) you will be much more happy than with for example a 5D or a GH2 and the CX will help you keep some results that yo can edit and use.
Also, very useful thing, the pullable eye visor that allow to power on or off the camera even with the screen closed. That is a lovely feature ! Video out never gave us any kind of problems so far.
Now, if you are a really good camera operator and know all settings in depth, yes the GH2 for example can give better results, but only under some specific conditions..
For the manual settings, there is manual exposure, manual focus and just disable smile detection and you can use " cinema" color mode or normal mode ( just ask the guy you are delivering the video to wht he prefers) and well you will be able to deliver some pictures even usable for professional media people, colors and stuffs, they will work themselve on postproduction if needed.
I'll post a link to some videos made with a CX 700 and post worked by professionals for a specific video clip as soon as the clip wil be released to show what you can get
But well, be positive : ) CX is a really great tool ! And ti's a consumer camcorder, not a special gimbal ready thing so you obviously have to deal with some small stuffs
Best regards,
Fabien