I purchased this 3 years ago along with the MICA panel. I still actively use the MICA panel it is used nightly (year round) to heat my son's room. This lasted one season and then broke. I then purchased the 4590ER and that lasted one season and broke. Meanwhile I purchased a 2nd MICA panel and LOVE IT. They both are wonderful but now are no longer offered from amazon.com. But back to this product review ... it worked. It was a tad bit loud and I felt like I had Kitt from Knight Rider in my room (especially with it going back and forth) but other than that it did it's job. Just not the quality I would have expected.