I’m the same, but I did it using my Monzo account as a spending account (I wrote about it here: In defense of Pulse Graph). The result is the same: Someone who swears by, and is extremely grateful for, Monzo.
Why they don’t push this as the primary benefit of using Monzo I don’t know. Instead I see adverts on the tube for using Monzo on holiday 
I’m guessing Monzo is going to ultimately fail, seeing how the people that run it can’t understand the primary, life-changing benefit of their product. I hope the fast-followers who come after them do at least.