Holly, the original appeal of Lost isn’t apparent in season 2. The introduction of the Hatch marks the decline of the series in my view – as evident by the fact that the writers have dispensed with the button pushing in season 3.
To be frank, I wouldn’t encourage you to watch it at all – the show is the longest con pulled on audiences in recent memory. Back when it was original or fresh – season 1, where the writers gave the impression they knew what they were doing – Lost was mesmerising. I wouldn’t have hesitated in recommending it at all. Now I would urge that you steer clear of it, and check out Carnivale instead (if you haven’t seen it yet). Now, *that* was a great show that managed to build interest and sustain momentum – a shame it was cancelled prematurely due to production costs. And it was certainly better than Heroes, which is becoming less impressive as the series progresses.