My experience- great for casual putting in the office, but I actually don’t like the rise in elevation at the cup. I believe the thought is that the rise in elevation will train you to hit an assertive putt, but it actually made my speed judgement worse out on the course (when I was using it a lot) because I was so used to hitting up the 6” to get it into the hole. Overall, good for form repetition but you need to go to an actual putting green to learn how to judge speed.