Stripe Merchant fees:
1.4% + 0.25€ for Europe 2.9% + 0.25€ for Non-European.
Paypal fees (cross border): For Spain (where I live): 3,4 % + 0,35 EUR per transaction. Merchant fees: 2.9% + 0.30€.
So probably better than Paypal for now.
I don't know a lot about fees so if somebody can compare it with bank transfers would be awesome. Liking the interface though ;)
Bank transfers in my experience(I've only used services that handle the transfer for me) take way longer than I want them to. I always opt for getting my money in two days over like a week.