A fantastic little add-on that's well worth buying in any sale - if only all DLC was like this.
It's a little saddle tank with semi-realist controls, nice sound fx, comes with it's own stock and branch line and is quick drive compatible.
With a max speed around 45 mph you won't want to take it far but put it on any rural branch line with half a dozen wagons and a brake van and you have an instant "Ivor the engine" or "Thomas" scenario.
As it's an old DLC the RouteInformation thumbnail "Maerdy.png" is wrongly named for TS2015, so missing from Scenario descriptions, etc. but other than that it seems compatible with TS2015 and would recomend it.
Note: the thumbnail can be fixed by copying/renaming "Maerdy.png" to "image.png" but DTG need to fix issues like this for quite a few routes.