I like and dislike Super O track.
Like: nostalgia and it is a decent track system.
Dislike: buss bar for center rail. A minor issue, but one extra step when assembling the track. Plus accurately getting it placed on the center rail. My bigger issue is the switches, specifically the switch motor housing. I have an FM Trainmaster that will catch on the housing if the switch is used in a curve. This is remedied by placing a short section of track prior to the offending end of the switch. Unfortunately, this increases the size of the layout, a bit of a problem if you’re trying to keep the layout compact.
Steve