For a Christmas gift my wife gave me a Reindeer Pass Rail Kleen , I have the one that came mounted to the H-L-W Coil car.
All I can say is that I cant wait for spring to use this out on the railway!
I have been testing it on our bridge that we store in the basement for the winter and the Rail Kleen works excellent, with just one pass it did a great job cleaning the rail surface, after the second pass it looks as good as anytime I have cleaned the rail using my pole sander and a lot of physical effort!
There was a slight issue with the Rail Kleen upon its arrival, had an issue with the motor shutting down after about 20-seconds of use.
A quick email to Reindeer pass and they advised that the issue I was having was a battery issue, they advised to cycle the battery a few times to clear the internal circuit board and it seemed to do the trick. I have been cleaning all the excess tack sections I have laying around in the basement and it is working perfect.
The Rail Kleen mounted to the HLW car is a bit pricey so if that is holding you up from investing in one they also offer just the Rail Kleen device itself that you can mount to a car of your choice for a lot less money.