Would you consider it a solid enough ball to where it's good in heavy oil but is also affordable given it's lack of use?
I kinda forgot to address this part of your note, which was the whole point of your post. The No Rules has been surprisingly useable for most people in my area across more conditions than I would have guessed. I do have one, and it rolls really good, and is very easy to watch as it reads the lane and goes through the pin deck.
In years past, I have struggled with most big assyms, and the NR has been a pleasant surprise for my game. I didn't care for the Hyper Cell, even after a couple different drills. I stayed away from the entire Crux line because I couldn't bring myself to spend the money on an experiment. I have found way more symmetrics that I could use as oilers than assyms over the years, but the NR may have changed that for my own personal situation. Hope this helps.