I have one and can only compare it to a wally-tractor.
The wally-tractor is designed uniquely for each tonearm, and is accurate and fairly easy to use.
The Feickert is a universal tractor that is flexible, very easy to use, and yet quite accurate. I was able to quickly switch between Baerwald and lofgren set-ups to see which one worked better. The included strobe is handy as well.
In the end, if I were to do it again, I would go with the Feickert because of it being universal and ease of use. Also, you can order one today and have it in your hands 3 days later.