They make an injection molded drop bottom composite gon that's ok. I think most folks feel the intermountain offering looks much nicer, considering it has real wood bits, but it was twice the price. Not sure if that's still true based on the latest prices.
They have a beet gon that I don't think anyone else makes but it isn't in my time frame so I've never seen one in person.
The steam crane is a decent model and is close to a number of different rr models, not sure if its an exact match to any. The tender they make for the crane is acceptable, I think its generic vs any specific prototype.
The crew and work cars are very acceptable as an old boxcar modified for MOW use. You could make a more unique model by converting a boxcar yourself but the Titchy kits have the advantage of just glueing together and they're done
