My parents have a 1200, and I have a 500. The roll replacement really is quite easy, and to be completely honest; it’s harder to take the plastic off the new roll without damaging the felt then it is to install in the roller
But in all seriousness, I would say roll replacement is really only a few minutes. Probably 10 from unpacking your new one, getting the old one out, new one in, and resetting the roll on the app for it to resume automatic advancement. You don’t have to shutoff flow or the unit either. The few users I know personally haven’t had to do any maintenance yet, I think it would be smart to clean the probes with each mat replacement. But the unit just works for me. The 1200s are having some troubles with drive motors but Red Sea has done a reasonable job at replacing the failed ones
But in all seriousness, I would say roll replacement is really only a few minutes. Probably 10 from unpacking your new one, getting the old one out, new one in, and resetting the roll on the app for it to resume automatic advancement. You don’t have to shutoff flow or the unit either. The few users I know personally haven’t had to do any maintenance yet, I think it would be smart to clean the probes with each mat replacement. But the unit just works for me. The 1200s are having some troubles with drive motors but Red Sea has done a reasonable job at replacing the failed ones