I'm mostly trying to decide if there's any reason to get the L2. The L1 is part of a pack I decided to buy, so I'll have that. However the L2 is on sale today, but is still fairly pricey. Trying to decide if there is any reason to go after it, or not.
Waves is not very useful at telling you what makes them different. I think they presume that you are ok with "Bigger numbers = bettar than!" logic :).