Bests & Worsts Reviews from Amazon

I was so excited to find a diffuser with a large water capacity. However, after using it for a few months, cleaning often...I'm over the essential oil build up in the water reservoir. It's disgusting. I have 4 other diffusers and none of them do this....going to try to return...if in able....this will become a back up as a total last resort. The picture is after 2 days of cleaning.