Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: purchased this item on August 29, 2005

"Yeah it is accurate, but do I need to know a right angle is not an exact 90*? Maybe it is 89.4*."Well you might not, but I do. I work for a commercial cabinet company and have found this to be an invaluable tool over the last 25 months. I know this already has a lot of reviews, but I wanted to say I have owned it for two years and it is still dead on. I ordered the smaller Denali the other day since I need to measure tight spaces once in a while and it was off by .7 so I sent it back. I will most likely give it another try and I know it is 1/4 - 1/5 the price (depending on the day you log on to Amazon) but I saw no way to adjust it when it was off so very far.This is a quality product, or at least mine has been.