Terry…
I own both steam and diesel locomotives from MTH and they are reliable, and durable models, very well done, well detailed and excellent performing pullers.
Each model has its own characteristics, so it may depend on which model you are considering.
I can tell you that the DCS (protosound3.0) versions run just fine(flawlessly) with any DCC command system and can also run with Kato, Athearn and Atlas locomotives without any problems(a few posters on here elude to DCS being a ‘problem’ which is a misconception) with some minor programming.
DCS has nothing to do with the operating performance of the locomotive in conjuction with your dcc system or other locomotives - only it’s internal features - if you have a 28 function capable controller, you can access the same features, allthough the DCS TIU will allow you even more capability.
The speed steps are set and programmed at the factory to scale mph increments so these engines start from a crawl very smoothly. I routinely match my other locomotives to run with the SD70ACe models and they really work well together.
As a matter of fact, the others run better with the newer settings. You can utilize JMRI software, or others available - or, just custom speed match if you want.
More importantly, if you like to install your own decoder, MTH is starting to offer DCC ready versions at a lower cost that the factory sound versions.
You’ll see more of these being released in the future but some may not be available with DCC only.
If you want a locomotive that will last for years, nicely detailed and can pull exceptionally well you can’t go wrong with this brand.
Their selection of available models is limited compared to others but new releases are alwa