I can't speak for their computers, but every Samsung product I have bought: HDTV, Home Theater, and cell phone, have all had problems within a year after purchase. Thankfully I had a 5 year extended warranty on the TV because there were continual problems with it. The TV died on me last fall. They told me the electrical system had gone on it and that it would cost too much to fix. Of course, the warranty had run out in the spring. I had a 3 year warranty on the home theater. I had bought it not long after the TV. That died a year before the TV, but at least I got the money back on it from the extended warranty. The cell phone died within the year I started using it, and because I had insurance on it, Verizon replaced it for free. I'll never buy another Samsung product as long as I live. I've had Apple computers for years, and have never had any of them die on me, or have to go into the shop. When I buy a new one, I pass the old one down to my youngest son.
I have a Samsung 42" LCD TV that I purchased in November of 2003 (I remember buying it two days before Thanksgiving when my old 35" picture tube tv that weighted a million pounds finally gave out, and I needed a TV for family coming to visit over the holiday.)
That Samsung TV is still in the same corner of my family room, working just fine. ZERO problems.
Come to think of it, the Samsung HDD's in my computer's are all still working fine too. I've replaced a number of Seagate's and WD's over the years, these Samsung SpinPoint drives just keep on chugging.