That's a compelling price for what you get: A generous 6-inch display with 2560 x 1440 resolution, still speedy Snapdragon 805 processor, 3 GB of memory and a 13 megapixel camera with optical image stabilization. And the reduced price is more in line with what the Nexus 4 and 5 handsets cost.
With Fi, you only pay for amount of data you actually use and calls seamlessly roam between Wi-Fi, T-Mobile and Sprint as needed. I do expect, however, that the new 2015 Nexus phones -- from LG and Huawei -- will also have Project Fi support.
You get a stock Android experience, fast updates, a solid camera and fast charging capabilities. Indeed, when using a Nexus 6 to test Project Fi, I enjoyed using the phone. The only time I didn't like it was when I wasn't using it: There's no denying that for some, the Nexus 6 is cumbersome to carry around.
Is the Nexus 6 at $349 too good a deal to pass up?
If there weren't newer Nexus models about to drop and the $399 Moto X Pure Edition weren't currently available to order, I'd say yes for Android users.
Even so, it's a reasonable deal for those not interested in waiting for the new Nexus -- and are concerned about the prices of them -- or don't want a Moto X.
Google Nexus 6 review: A larger Moto X with fewer Motorola enhancements