Everything else has already been said, no louder than comparable units, the slight plastic odor is to use the second way. The pouring opening is large enough for filling, therefore, an opening of the lid is only necessary for cleaning. I would buy it again - clear recommendation!
ADDENDUM: exactly 10 weeks, the unit gave up the ghost (or even worse. The heating is on when the device is on the bottom plate, - without light not quite safe - I would be interested, what happens when all the water has evaporated ). Because in the documents no manufacturer / supplier is given (description and warranty certificates only to PL / HU / SK / CZ and LT), call at Amazon (Thank you! For quick and friendly response). Proposal: exchange, since the device was otherwise so okay. I'll write again as having passed with the replacement unit .............