ozinoz wrote:Don't think I will actually bother creating scenerios for it, just a single free-roam and I will sit in the yard and play with all the bits

There are going to need to be some hefty instructions. Any idea just how much there will be with the automatic fireman? I am one of those who struggles to do just 2 things at once - drive and watch; I just cant do 3
Grant
I recommend you do the "extended tutorial" scenario. It starts off in a small yard in Johnstown and takes you through the steps, while doing some switching, refuellling (the coal animation turned out very well, if I say so myself) followed by a nice little run up to South Fork. The scenario has lots of pop-up messages to tell you what to do.
I've also begun writing the manual. I hope it'll be clear enough, but I'll be here (and on facebook probably) to answer any and all questions. I'll try to do an instruction video too.
I've set it up so that you can use the automatic fireman too. You'll still see the firebox butterfly doors opening and closing automatically, and the exhaust injector lever being pulled to refill the boiler. I myself prefer to run in manual firing mode, setting the stoking rate by "stepping" on the firebox doors foot pedal and monitoring the fire mass level using the F5 HUD. If you use the injectors in manual firing mode, it gives you the chance to see what happens if you bodge it by pulling the lever while the water valve is closed, or forgetting to close the water valve after filling the boiler (look for the steam and water coming out of the overflow pipe under the cab). There are some things that the automatic fireman can't do, like switching on the compressor and hydrostatic lubricator, so you'll still have to do that yourself (although they are just eye candy - and ear candy in some cases - to give a more authentic feel, and nothing will break if you leave them off*).
You can even drive it in simple mode if you like. I've made it to suit all tastes
One more thing ... I intend to write more scenarios that I'll upload to the Steam Workshop as soon as the loco goes on sale, so that people will have more scenarios to play after they've done all the ones provided in the package.
*EDIT: "nothing will break" .... unless you activate "expert pro" mode, by pressing ctrl-shift-E, which enables some slightly fancier stuff in the LUA code

(like running out of sand if you leave the sanders on all the time)