Has anyone got one? And if so what are the buttons like to do up/undo? I got one delivered today. I love it but It’s the wrong size so I need to exchange it but the buttons were almost impossible to undo/do up. The buttonholes were minute. I’ve asked them to check the exchange ones before posting them off but I’m hoping this is a fault with this particular one and isn’t a thing with them in general as they’d be really impractical.