I once had a SR24 and it was by far the most reliable and best running locomotive in my fleet. The burner always lit on first try and never once failed for any reason. I found that 1:24 scale cars looked the best behind the SR24, so I built a couple of kits and scratch-built the rest including a SR 556 Caboose.
Here is a video of it running just before I sold it to a happy owner.
Note it is radio controlled and has a DBJ whistle installed. Also, notice how nice the 1:24 scale cars go with the locomotive.