Very well made and yes it’s quiet, sensitive to minute air changes, it’s really effective. This is my first air purifier but I did a lot of research and this unit does not disappoint! Yes it’s a bit more then some but average the use and quality performance over the long term it’s worth more. That said the controls are super easy to use, I just leave it on auto mode and it knows what to do. My space is mostly a large open area so this is ideal. I’m a happy satisfied customer!