I'm going to wait and see this Monday's Fall Finale episode and then I'll decide if I'll try to stick with it or drop it a la "V", Caprica and FlashForward.
The first two episodes were awful but I tend to give a serialized mythology show a good 10 episodes to let things develop--The Event seemed to correct itself from the third episode up until the last two which veered right back to mediocre crap and incorporated the very elements I disliked in the first two episodes--tired action movie plots/sequences, illogical character actions, silly storylines etc. Up until then I sorta enjoyed it and I'm willing to overlook certain plot contrivances in the short term(i.e. The Xindi sending a test weapon to attack Earth thereby alerting them to the threat) if it leads to an overall interesting story.