I have a LionMaster Big Boy and Challenger and SP cab forward. I also have the Lionel Vision Line scale Big Boy and Challenger. My home layout has 054 curves so I can only run the LionMasters at home. Our club has 80 and 72 inch curves and so I run the Vision Line as well as the LioneMasters on the club layout.
As for the LionMasters, I like them as they do give a good representation of the scale versions. Having a small home layout, allows me to run these with my scale cars. One thing I do, is avoid putting scale box cars behind the LM's. I usually put a flat car or 2 or a gondola behind the tender. This way, the larger scale cars do not detract from the LM's smaller size.
RAY