Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrific simple tool!

I was skeptical of this tool's value when I first purchased it, but now I can't live without it! I have been doing a lot of interior trim work, and I use it constantly! I have never before been able to get better results hanging straight, level/plumb trim with such even reveals! I'd highly recommend this to any finish carpenter, novice or professional!