Received OnePlus One invite. Should I get it now or wait for Nexus 6?

I was going to get the Nexus 6 later this year when Android L launches. However I just got my (elusive) invite to buy the OnePlus One CM phone. OnePlus One is promising Android L update within 3 months of the final release. What do you guys think I should do? Should I get the OnePlus One now or wait for the Nexus 6 (which presumably will have equal or better specs than the OnePlus One).