I have 26 Real Trax switches on my layout. 3 of them are 072. They have been in place for over two years and I run my layout pretty much daily.
I have not had any problems at all with the 072 switches. Be sure to install them properly and you will not have a problem. I run all types of rolling stock through them and diesel and steam. Backing up long consists through the 072 is not a problem.