When I first starting appreciating steam in N scale. I mean really appreciating it, it was when I got divorced from my first wife, and that was 1986. I had a financial windfall and got 5 locos via mailorder all Japanese version Kato steam, of which 2 were the C55, and to my surprise as I was not as aware then as I am today, they ran great!!!!
I still have that unit, occasionally running it as I did a mild "americanization" (decals) and it runs like the day I got it.
BTW, other units I got with that order were the 2-8-2, and 2-6-0, and all are still intact.
Ken "FloridaBoy" Willaman