Bilt has added Amtrak as a transfer partner at a rate of 2:1. If you transfer 2,000 Bilt points you’ll receive 1,000 Amtrak points. Amtrak points are worth roughly ~2.67¢ towards train travel so there is some value there but the 2:1 transfer rate definitely hurts.
I’d be shocked if Bilt didn’t offer a transfer bonus to Amtrak for rent day next month, hopefully it’s a generous bonus. Bilt last added I Prefer Hotel Rewards as a transfer partner in June. Seems that most of the issues with the Bilt credit cards have been resolved and they are back to adding partnerships.

