For me this was very easy to put together and get it up and running. I wanted a HEPA filter so that's is what sold me on this one. I like that it has 3 settings and already I feel like the air I am breathing is cleaner and healthier. I have used other air purifier's in the past but this one is a great size, not too loud and just works. So far I have noticed my dressers and such are much less dusty than normal. The biggest thing is just make sure it's not too close to a wall or anything so airflow is good and filter will trap the unwanted particles and smells.