Excellent humidifier, very quiet and easy to maintain. Works well.
However - buyer beware (!) where this unit falls down - is in the availability of replacement accessories, specifically the replacement wick. It's been out of stock for 2 months now in Australia from Philips directly and their other suggested retailer.
I'm now at a point where I'm considering bringing the wicks in from overseas - at double the local cost! With such a high accessory cost the unit cost effectively doubles after every 1.5yrs of use... not good!
Please do something Philips to get the accessories back in stock - you yourself recommend 3-monthly replacement for the wicks... the manual specifically states "Use only Philips original humidification filter HU4102".
If accessory supply is resolved I would otherwise have no hesitation recommending this humidifier.
I use this product to add humidity at night as my nasal passages are very dry. It helps a lot with the moisture and easy to keep track of the amount of humidity in the air. The only complaint is it does make some noise switching on and off during the night.