I experienced RNG while grinding my two weapons. But I enjoyed it when on the very last point needed I got in with a real party that included a healer. Got the +1 early and did not have to worry about making it to the end to get that last point. I will NOT go back there any time soon as it is boring and it also had the gall to have me go through 20 floors without a single +1, twice!! Oh well I got what I was after. Let's hope the next set of floors brings some excitement.