[kingofspain]

I'm with them for personal and the app is great (website also pretty good but it has an unusually strict timeout on entering indentity codes that makes me sit there with the app poised, so I can enter it within 3 seconds!)

Santander's mobile app is awful though. It kind of works but it's a chunky pre-iOS 7 hybrid monstrosity. Web access is pretty smooth however.

Co-op who I was previously are a crap beast on all counts.