Instruct: Classify a review into positive or negative sentiment.
Query: Fast shipping, works perfectly

My 8-pack of 13 watt CFL bulbs arrived within 3 days! Waay before the estimated shipping date. I'm impressed. Just moved into our new apartment and I wanted to switch out all the old bulbs. I'm simply just too cheap to pay $2.50 a piece for them at the store, but luckily you can find anything on amazon!