Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Like a 1950s promis of the future come true

At first I thought the thing was crazy and had the most random cleaning possible anyone could think up, then I realized it was reading the black stripes on my carpet as a change in level of the floor surface and didnt want to fall into the abyss. Since my floor is completely flat, I put masking tape over the sensors for floor dropoffs, and WOW, it now works like majic. I remember how in the 1950's Popular Mechanics Magazine promised alll of these labor saving devices, along with an arplane that could take off from your driveway and everyone could afford, well, the IRobot Roomba is everything a labor saving device could ever be...every promis ever made in the 50's for same. I love it. I leave it and when I come home the livingroom is completely clean ( the floor anyway) and it is safely parked in its recharger with little effort of mine being expended. Buy one.