The second book in the Twilight saga covers the pain Bella goes through when Edward decides to leave and how she bonds with Jacob while trying to get over her heart break.
Again, Meyer does a great job in portraying how it feels to lose someone you're madly in love with. The sensation of loss, emptiness, the hole in your chest, the difficulty to breath, the effort of trying to keep on living when you feel that nothing else matters - you do feel Bella's pain. For selfish reasons, Bella starts to hang out with Jacob, trying new "highs" so she can hear Edward's voice in her head while she's in peril. Bella and Jacob's bond becomes stronger and they fall in love with each other, not with the same intensity though. Although Bella's feelings are more of a friendly love, very often she says how warmth Jacob's skin and how beautiful he is - you could almost feel a bit of lust and desire in those remarks.
As for Jacob you can also feel his pain and frustration, having Bella so close yet impossible to have. And when Jacob's transformation into werewolf finally happens (who was surprised?), it's an ironic situation since it could be even riskier for Bella to be around Jacob since he's not totally in control of his emotions.
Comparing New Moon to Twilight, there's an improvement in the way Meyer wrote the dialogues and the character display their feelings, even though there are still loads of "I thought", "he growled", "she sighed" every time the characters talk to each other.
Since the biggest part of the book is mostly about how Bella tries do move on and the role Jacob plays in her life, the pace overall is not quite the same as Twilight. However, the last 5 chapters the story develops in a such speed that it's almost hard to follow. In the end, Bella gets her happy ending, even though from now on it will be difficult to please both Jacob and Edward fans.