Its was new and novel the first few seasons then it started going down hill. I stopped watching after the season with Puck.
Every so often I see bits and pieces of it and now its just people who are chosen because they are suitably hot, borderline psychos to stir the pot and a normal person or two just to make it seem "real". While not scripted, its very orchestrated. Once it got that way I stopped watching; from what Ive seen since, that hasnt changed.
Most people watch this show to A) See people fighting B) See people screwing C) Feel normal. Started out good, went downhill fast; now its just a big mess - it will probably end when someone dies or is badly injured and lawsuits fly.