Instruct: Classify Amazon reviews into positive or negative sentiment
Query: bad bad controls

Something I really never gave much thought to before this heater, but the worst controls ever! Really hard to see anything - fan speed or heat setting. Dials are same colour plastic (not like picture) with small embossed/partially obscured numbers (or some symbol???).I give it a 2/5 only because it is a quiet fan with a stable base.I'm curious who approves a product like this at DeLonghi?