We were on the Maasdam from Sept. 18 to Oct. 16, we were in Cabins 394, 112, 674 and never had a smell.
There was 1 lady on Veranda deck who told me about 'The Smell' in her cabin. That was all I heard about.
On LP, there was a waterline break that flodded cabins forward of us, the ship was full, so they had to live with it. No happy campers, but they rec'd some ship credits.
I would take Maas anytime.