I've been using Curve for a while (the Samsung Pay Card was being awkward about setup so I just bit the bullet)
Finding it quite handy so far, notifications and email receipts for all my spend, a tracker, the ability to switch payments between the cards I have registered.. Great stuff. Found it useful for a quick run to the corner shop and to just use Samsung Pay on my watch with it, means I literally just have a mask and jacket when I go fetch a few bits.
I'm with HSBC so I'm not sure if that would make a difference