Great job Atlas! These are my first Atlas Premier (ex MTH) engines and they are done very well. Excellent details, super small readable decals, clean paint lines, just overall great looking.
Also, they come with scale coupler installed and are ready to put right on the track right out of the box. I believe they modified the mounting holes for the snow plow so it is the correct distance from the pilot. I had to redrill those holes in the past.
They both quickly added to the remote and added a lash up with no problem.
Most sounds are the same except for the horn. At least I have not heard that one before.
My only wish, which I know they can't effectively do, is to move the trucks in closer to the wheels. There is still an 1/8+ gap to accommodate 3-rail wheels. I'll have to do that myself as well as filling the gap.
Very happy with them, and they look great running on my first section of my new 2-rail layout.
Rich