I've had the 7t now for several days. Loving it so far - the "camera bump" is something people looking for something to complain about will complain about - meaning they can't find anything reasonable to complain about.
Battery easily lasts me all day, even when disabling Adaptive Brightness and setting it to 100% while at work (screen isn't always on).
It's fast, it's smooth, it takes good, fast pictures - fast even on Pro Mode, which enables the 48MP shots, and it can do 4K60fps video, whereas the Pixel is limited to 4k30fps.
I loved my Pixel phones, and did not like the 6t. At all. It surprises me how much I am liking the 7T.
Without the P4XL in-hand, the only reasons I can currently see getting the P4 over the 7T is soli (if that's what you're into), or some of the "pixel-only" features like Call Screening, Spam blocking, and such. The camera? Not as much of a deal-breaker as I'd thought. The snaps I've taken so far seem very good (I am no expert, but have used the Pixel 2 XL and Pixel 3a XL extensively).
That said; The Pixel 4 XL should arrive in the mail today so I should be able to make some better comparisons (they aren't both for me).
Edit/Additional: T-Mobile just announced the OnePlus 7T McLaren Edition (5G) will be exclusive to T-Mobile in the US... O.O