I refuse to support them at all. Their control system is proprietary, and as such any new development has to come from them and them alone.
A fellow at the club turned up with one of their GS-4 steamers. Well actually it was a GS-4 dressed up like a GS-6. (that's the SP daylight steamer/American Freedom Train/warbaby for you deprived diesel modeler types who aren't into steamers...you poor folks



)
I didn't like it at all! Though it did run & pull well, it was a pain to program. Only the basics were even accessible for programming through DCC. Lots of toy like "gimmicks". Who really needs station sound effects anyway? And the whistle... awful! There is a functioning prototype available, but did they record & use it? Nope! it was a N&W whistle



The drawbar spacing was large enough to drive a truck through, and there was not a second hole to reduce this of you wanted, so they were bascially thinking of getting the thing around 18" radius curves, and to heck with any sort of prototypical appearance. And to put the icing on the cake, they have train wreck sound effects in several (if not all) of their steamers!

After years of teaching my son and other kids to run the trains at slower realistic speeds, they go and do that!
It looks to me like MTH is attempting to cross market between toy trains & model railroading. Those who like the Lionel-ish gimmickry will buy their stuff. Gee I wonder when we'll see the HO milk car & unloader that spits little milk cans across the layout room??? I can hardly wait!
The one thing they do have as an advantage is: they have won enough of their lawsuits that they don't have to actually make any money off the trains! And don't give them too much credit for the UP trademark lawsuit thing either. They did get lots of press about that, but the real effort came from behind the scenes, from people like Phil Walthers, and the good folks at Atlas.
No offense to the three railers in the crowd, or anyone who buys their stuff. We are free to spend our hobby bucks on whatever we want, and if we all did the same thing, it would be a boring hobby for sure

. These are just my views on these guys, which as you can read, aren't great!