it's a mirrorless dslr sized but a lot lighter than a 5d or the like. if a person only knew dji rtf's, they have been flying them on the s800 for a year or two, but came out with a s900 to make up for the s800 shortcomings. I'd rather have a real frame with good parts like i'm doing.... there is no overhead in many of there rigs but a lot of people start out with them and get by, but eventualy have problems that eats them.....
imo s800 is a nex rig, decent camera, not a lot of lens options and it's not a very good sensor in a pro setting, not sealed so dust on the sensor is a game they play. GH3 or GH4 will make movies but not many "real" film makers use much other than 5d or an epic.
yes past tense cause they get blown apart in a decent crash
Stepping up takes you from a 3 lbs relatively tame to crash, might dent a car or dent siding on a house. when you go up in weight from there the liability and the damage they can do is pretty major. Through cars, into houses ranging from 25-35 lbs.... thousands of watts, etc. Batteries get big and expensive, takes big expensive chargers and to do it right is using a 3 axis gimbal that takes a two man operation.