Its good for the price but I really don't have anything to compare it to as I'm not an expert on box wall air-conditioners. I'm happy with it and was surprised that Dimplex is an Irish company, and either the largest air-con company in the world or one of? Why Ireland? Anyway its icy cold at 16 degrees on cool and the reverse function is working well, a negative is its got a '1 and half star' for energy efficiency. I'm glad I bought and installed it, it has made a world of difference in controlling the environment especially on hot days, good.