Instruct: Classify the given Amazon review as either positive or negative.
Query: don't waste yout money or time

I don't want to disappoint you but I will let you know up front....you're not going to get what you want! I wanted a device that would give me quick accurate readings ever few days, so I could clearly track my progress. THIS IS CLEARLY NOT THE WAY IT WORKS! (I know you want to see progress! I promise you....you will only see progress over months NOT days or even weeks! Machine readings fultuate way too much. The mirror is way better. Sorry, Im just telling you how it is.