I've received good advice on short connection times on this forum (like my BUD-CDG connection to SFO in 45 minutes which I changed on advice to a better, relaxing experience connecting at AMS).

Now DL has booked me on JFK-SEA-HND in late February with a 35 minutes connection time in Seattle. Flying First class to SEA and D1 to HND with carry on only.
I've never been to SEA - any thoughts? DL of course says this is a legal connection and meets their minimum time for SEA. This is more of a leisure flight, so it's not the end of the world if I miss and arrive a day late, but I'd still be pretty bummed out about it.