It's a similar service yes. OP wants to accept Bitcoin payments though and CoinPayments is mostly targeted for those who want most of the alts.
I did not have this in mind.
no idea about electrum, but Coinbase and Bitpay services are trustworthy already.
Electrum is a wallet software not a payment processor. A payment processor is a third party who act as a middleman and receive your transactions. Think about Paypal although it's a fiat based payment processor.
Thanks for the replies. Does coinpayments or bitpay do chargebacks or is that not possible?
Not sure if they have but since they are handling your bitcoin, they may look after the customer satisfaction. They may freeze the account if they see any suspicious activities.
I freelance write and customers have a nasty habit of having me write for them then generating a chargeback so i worked for nothing. Another reason I kind of liked the bitcoin idea.
Why don't you give them your own wallet address instead of any of the above or any exchange. Those payment processors and exchanges do charge a lot for every transaction even when you want to withdraw the money too.