Is buying prepaid eSIMs with Bitcoin a convenience win or fee trap?

I’ve started experimenting with paying for travel data straight in BTC instead of messing with airport kiosks. Last month I bought a 5 GB UK eSIM through Prestmit and the whole checkout settled in satoshis: the QR code landed in my inbox before my coffee cooled. It felt pretty slick, but here’s what I’m still unsure about:

• Spread vs on-chain fee: The price was roughly spot +1.8 %, which beats some card FX rates, yet the miner fee that day nudged the total higher than a debit card would have.
• Liquidity risk: They auto-convert to local currency on their end, so I didn’t chase a buyer, but I wonder how sustainable that is if BTC drops 10 % mid-flight.
• Refunds/chargebacks: If the eSIM fails to activate, there’s no card dispute, just support tickets and hoping for a manual BTC return.

Anybody here tried similar Bitcoin-for-mobile setups - be it eSIMs, airtime, or even pocket Wi-Fi rentals?