I have commented on this in other threads. I've used a N1 since its launch. I returned my NS after having used it for 3 weeks as my primary phone. The main reason that I returned it is the lack of noise canceling, the ear speaker sounds tinny and on a busy street the traffic noise is picked up by the mic and broadcast in my ear. My N1's in call sound quality is far superior to the NS. The noise canceling really does a good job.
Nexus 7 OTG USB adapter, 32gb micro SD
Galaxy Nexus GSM, Jawbone Era BT
Asus Transformer + Dock, 32GB SD, 32GB micro SD
Nexus One 16gb 10x microSD