It started a bit painfully. The characters were very unlikeable - the "science" pretty unbelievable. I was never a fan of the original so only had a basic knowledge and no nostalgia to hold me back.

The characters grew. So did the story. I ended up really liking everyone - except Smith, of course who is remarkably ruthless and manipulative. The solve a major life-ending / world-ending event every episode can get tiresome but that's the nature of these shows so can't complain too much.

Bottom line, by the end of the series I cared about what happens to these people and hope they don't make me wait too long to see them survive being "lost in space."