As I have posted here before, MTH Realtrax is a very bad choice. I understand (not from personal experience) that Lionels Fasttrack is a better choice for sectional track. Since my layout is permanent I should have gone with track like Atlas flextrack. I have a few short sections of flex track used to smooth the track flow on my layout. It appears to be very good track. Realtrax switches have also been problems. Realtrax is bad stuff...period.
I disagree. MTH RealTrax has been on my layout for 15 years, and I've had to replace three pieces of track and one switch, all due to use...or overuse may be more accurate. I had one minor connectivity issue, and it was resolved with a track screw.