
I've had one of those for years.
(I've never been a fan of the interior details either...)
They're a ton of fun in a large pool or small pond.
They do run hot though...
The only problem I've had with mine is that I have no way of making an acceptable battery mount. The battery moves around in rough water.
I've used an old Novak & Futaba radio system since it was new and never had any moisture trouble.
It's never been waterproof..but the radio box keeps most of the stuff out,