I am happy 2 rail guys like that. I have had many come to me and I have not seen many that I like. MWB, I have seen every problem mentioned. That could be because I repair trains and get to see a few locomotives in a year. No mythology, a real deal. You are a lucky man yours have been running good. How many do you have?
I am a huge fan of the superior models with dual vertical can motors and operating smoke unit. The operating couplers on my models are great as is the sound systems. DCS and TMCC are great I love operating these locomotives with the remote and phone.
We all have choices and should enjoy whatever you run. Some people like to drive a Ford and some like to drive a Toyota. Enjoy what you have and have fun.