I own several, and every time I look at them I marvel. The older Lionel type Z (250 watts, 23 volt) type V (150 watts 23 volt) and KW (190 watts and 23 volt) were great transformers. And, still can be today! If one runs trains with them, just use the proper protection, and for driving lights and other accessories, they are hard to beat. Two of them have 4 variable outputs! So, if cords and rollers are maintained, they are relatively cheap, powerful transformers, even today!
Old timers on here know this, but some others may not. For my DCS, I use the MTH Z1000 bricks, which at rare times, are not enough. If I was not so lazy, I would install the proper breakers for the older ones I have, and use them! At this time, only putting up trains for Christmas, I have elected to use the bricks.
For conventional runners, they are good, cheap power. Just saying, keep an open mind if you need power! Others may have a different opinion.
Greg