Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice monitor but I'd never buy ViewSonic again

My ViewSonic monitor was excellent for nearly a year - a nice crisp bright picture. Then the screen started jumping in and out. They shipped me a replacement within 24 hours and I was impressed - until I opened the box. The unit had clearly been dropped on to a hard surface. The case was cracked and it blew up when I applied the power. Note that this hadn't happened in transit because the packing was still in perfect condition. So someone at ViewSonic had deliberately sent be a badly damaged monitor.I got another replacement 4 days later. No damage this time, but it didn't work either. I'm waiting for the phone lines to open to request another.Now what sort of company sends out replacement units that are clearly dead? One that doesn't care much about its customers for sure. Even if I do eventually get a replacement that works, I won't be buying from ViewSonic ever again.