I have the same fermenter plus a smaller 30 liter fermenter from the same brand, I also have some a regular bucket which I use as bottling bucket now. About the cleaning and sanitazion I use ChemiproOxi for cleaning (like Oxyclean) and for sanitizing I have use a lot of differente stuff. They look that they can last for long they well built and I love my fermenters. Same as with ony other plastic fermenter try not to scratch the insides when scrubbing and you should be fine. I use a soft sponge to get rid of any residue and works fine.