Cleaning krausen residue is a bit tricky. I won't stick a carboy brush in it, because I don't want to chance scratching it. So hot water, PBW or oxyclean, and about a half cup of bleach goes in, instead. After standing for about an hour, it has all disappeared. Rinse well, and I'm happy. My biggest concern is remembering to empty it of all cleansers in a timely fashion. You do not want to leave cleaning solutions in these for more than 24 hours. Chemicals WILL deteriorate the plastic, and cause it to crack if left inside for days at a time.
They make large rubber bungs, so you don't need to buy the expensive plastic stuff that is made specifically for these.
I'm very happy with my 3 Better Bottles, and would not hesitate to buy more of them when I need additional space.
Price Payed: $28.00
Recommended? Yes
Pros: Lightweight, durable
Cons: No cons, just minor concerns