That they charge 900 setup at 250/yr isnt that out there imo. Tax advantaged accounts have unique requirements to make sure you dont take constructive receipt and there a distribution. A multi sig true bitcoin ira is a great value prop and custodial fees are to be expected.
But 1% ontop doesnt make sense imo. This is akin to an advisory fee and shouldnt apply here. Mighty fiat of them to transport the layers of fees from fiat to bitcoin.