I bought 2 of the Lionel ZW's that were produced in the late 1990's. They were capable of handling 4 180 watt bricks, for a total wattage of 720 watts. They work, but not well. They apparently had plastic used in the controller arms instead of metal and Lionel (or an after market supplier) made a replacement part. That worked better, but they never had the feel of the postwar ZW.
I would check out this one carefully before buying it.
Gerry