Instruct: Classify Amazon reviews into positive or negative sentiment
Query: AVOID THIS JUNK DUE TO POOR QUALITY CONTROL

Meade has serious quality control problems. Either don't buy this junk or wait a year or two for Meade to get their act together.The mySKY aims like a pistol with traditional pistol-like sights (2 in the rear, 1 in the front). I sent my first mySKY unit back because the factory never installed the front sight post for aiming (their customer rep tried to tell me the front should have 2 posts! He clearly wasn't knowledgable about the product!). Also, the unit failed to start up properly about half the time.Today I got my second unit, with a green laser pointer thrown in as a bonus. The volume control button doesn't work right out of the box! Also, the laser pointer won't turn on 80% of the time. Now I have to send it back AGAIN, and Meade will not reimburse for shipping despite being under warranty.Save your money!