When I started with random nosebleeds this winter I knew that the problem was related to the furnace heat drying the air in my home and thus drying the membrane in my nose making it prone to bleed. I shopped around looking for not only an inexpensive humidifier, but also for one smaller in size. When I found this humidifier I was pleased because it also did not require filters that would need to be maintained. It was also a nice convenient size and didn't cost an arm and a leg. I bought it and took it home to give it a try. I am happy with my choice and here is why: 1. Because it is small and more of a columnar shape it doesn't require a huge footprint that clutters the room or gets tripped over. 2. When running it doesn't make a lot of noise. It is noisy, don't get me wrong, it has to be for it to be productive, but it is quieter than some I have heard and after a short while becomes just a background noise that was rarely noticed. 3. Refilling the water chamber is very easy. A smaller pitcher of water every couple of days (I guess this could vary depending on the level of dryness that it is trying to correct) is all it needs. 4. It keeps the humidity level raised in the room and seems to be relieving my nosebleeds. What isn't the best about this humidifier: 1. Because of it's smaller size it is not meant to work in a large room. My home is very small so it is not a problem for me. I am using it in my bedroom which is only approximately 9' x 11.5'. 2. Hmmmmm...guess I can't think of any other things inconvenient. I have only been using this humidifier for about 6 months and have had no problems with it for this time. I have had other Honeywell products and have been happy with them so am expecting yet hoping that this humidifier will last for quite some time. Output Volume I have a thermometer that also reads humidity levels of the room. I find that when running this humidifier my room humidity level raises sufficiently. I like to see the humidity around the 20-25% and it is most of the time. Performance Working great for me! Ease of Cleaning Because I do not have to take it apart and change a filter, I can't give it any higher of a rating than a 10! It is virtually maintenance free, other than adding water. Durability So far so good! No problems in the 6 months I have had it. Design It is designed to fit in a smaller area without being bulky and obtrusive.