I've seen all the previous 5 seasons and 21 episodes of the current 6th season. So you could say that I'm a fan of the series.

IMO the first two seasons were great, 3rd, 4th and 5th were OK. The current season has been a let down. It's also unfortunate that most of the original main characters have died by now. 24 is not the same with the new actors...

For example in the current season Wayne Palmer as President and Tom Lennox as Chief of Staff aren't very convincing. Also the first episode of the season had a disturbing scene IMO and by that I mean the "Jack Bauer plays Hannibal Lecter" -scene.