Be aware that N26 do NOT offer instant…
Be aware that N26 do NOT offer instant bank to bank transfers and bank transfers cannot be cancelled once issued.

Everything seemed very quick and easy up until the point when I put my faith in N26 and they let me down when I needed them most when trying to buy a second hand car. Having issued the transfer they told me it would take 1-2 days for the transfer to complete, leaving me in an impossible situation as I was trying to complete the transaction in person with the vendor. And they don’t have the power to cancel a bank to bank transfer once issued.

In the end I had to grovel back to my high street bank and transfer the same amount again, but this time via their instant transfer service. 

Now I have the problem of trying to recuperate the money that’s still in transit from N26 to the vendor ...

All in all, a very scary experience. Be aware of the limitations of these so called modern banking operations like N26.