Williams diesel engines are generally considered to be very reliable operators and powerful as most of them have 2 can motors.
I've read occasional comments about some problems with Williams steam engines, so I'm posting this topic to get opinions, observations and experience about the operation, power and reliability of Williams steam locomotives.
To try and narrow the topic, please refrain from comments on Williams diesels or the older Williams brass models. If you have noticed a difference between the older Williams and the newer Williams by Bachmann products, please mention it. Also, I'd like to keep the discussion focused on operating characteristics, so no need to comment on cosmetic features such as accuracy to scale or detailing.
Some past comments have mentioned there might be different motors used in the scale (or more scale-like) Williams steamers compared to the smaller semi-scale Williams steamers, so if you have noticed a difference, please add your comments.
Williams diesels have a reputation as "bullet proof stump pullers," I'm interested in reading the experience of forum members to see if they have a similar experience with Williams steam locomotives.
Thanks for your comments and Happy New Year.