Uni-Fit catalysts

Hello municipality, I need your experiences again (if available ) Can someone tell me about experiences with Uni-Fit catalysts?? Ne new plant for my 6ender would beat with only 359€ to Busche (I find quite fair) however I also do not want to buy the cat in the bag and again constantly delete my error memory (see topic from 04.09). Can someone tell me about his experiences?? Already many thanks greetings from the Pütt Martin