Never had an overheating issue, and I've been using two units for years now, in all kinds of conditions.
Battery is a problem if you're trying to phantom-power anything. One solution is to attach an external battery via the DC-in. I think it takes 5V or something like that.
There's no charger for the Li-on battery that the unit comes with -- it seems you can only charge it while inside the recorder! Also, it doesn't seem to be happy with USB power while recording.
Nope. There's a switch that goes between XLR input and uni or omni mics.
I'm curious whether the Vari-Mole lights can be powered by battery. Anyone know? That's always seemed to me one big advantage of LEDs in general.
Yep, the surprises (for me) were the H4N (noisier than I expected) and 680 (less noisy than expected, especially in contrast with R44).
Well, taking a Steadicam Merlin as an example rather than a vested system... One big difference is portability -- fold up and throw it in your backpack vs bringing a pelican case and batteries and monitor and worrying about damage during transport. Another difference is operating time -- how long can you carry a gimbal continuously before you have to you set it down? You can do 30- to 60-minute takes with a Merlin if you have to. And another difference is price -- $200 for a used Merlin vs, what, $2000 for a Ronin M?
Of course, a Ronin M is also a lot smoother than a Merlin, and you can do more variety of moves with it.
I remember people used to have steadicam vs gimbal discussions in 2013. Non-vested stabilisers (like Merlin) have portability and operating time over gimbals -- just fold it up and throw it into your backpack, then unfold it and operate for 30 minutes. Vested steadicam vs basic gimbal has advantages including: can carry greater weight for longer periods; stabilises in six axes rather than three; capable of more subtle moves; fewer issues with device getting damaged, tricky to transport, not working properly, running out of battery, etc. And of course, gimbals have plenty of advantages to offset all of these, including ease of use, and a great variety of moves. Maybe the future lies, as Alex suggests, with a combination of the two.