I really liked the skin. Many model kit manufacturers like smooth skin and deep panel lines. Most aircraft actually have neither. They're riveted. Helicopters aren't even flush riveted. (Why bother?) Only very modern aircraft, made of composites, have really smooth skin.
It seems very accurate. It has the straight tail boom but that covers most military versions (and if I'm right, all US military versions).
The cockpit is okay but the cockpit floor is not. That is to say, there is one. The real S-55 doesn't actually have much of a cockpit floor. From the cabin you can see the undersides of the pilots' seats.
There is a short thread on ARC Forums by a guy who started doing what I want to do - cut out most of the cockpit floor, give the cabin an interior, and open the sliding door. These things are not that hard to do. Unfortunately the thread stops just as it was getting interesting - fitting his sliding door.
http://www.arcforums.com/forums/air/index.php?/topic/298517-148-revell-h-19s-55/I would replace the cockpit "rear windows" and use the kit's side windows - which are a bit small - as masters for simple vacform replacements - they should come out the right size. (And if they don't come out perfect, just put them in the open, slid-back position - hey, who's to know they are a bit off?)
There is almost nothing on the market as far as accessories and details is concerned, but frankly, do you really need them?
There were lots of decal sheets, but not so much now. What there is though is fascinating.
There are, happily, heaps of detail photo's (interior too) on the internet.
It's a great kit if you are starting on doing your own detailing. A simple vacform, and a bit of a chop on that cockpit floor. Detailing the cabin is easy because it's almost a simple box. Making a new side door is a matter of cutting a square of transparent plastic and sanding corners a bit round. There's no major surgery involved, the base kit is dirt cheap, and best of all, your mistakes won't be very obvious!
Grtz,
Marc