We use paypal for our ebay store.
It was part of ebay earlier. Now ebay is managing payments itself.
Paypal is eady to use . Safe . Never had issue with paypal regarding security and fraud.
There is seller protection program also.
Paypal charges around 25p + 3% for each sale . There is another model is is micropayment program which is 5p+5% for each sale.
We were in first plan. We lost lot of money as most of our sales were less than 3GBP .
Paypal team should have contacted us regarding the benefit of micropayment plan. We came to know about it though friend. We used it for 1 year and then ebay moved from paypal to ebay managed payments.
Big loss to paypal.
Paypal should find a way to cut down its fees otherwise most of big platforms will be out of ebay services.