Up-2-Date Crypto Service for E-commerce?

[TakeControl]

I am currently looking at Coinpayments and Crypto.com

Crypto looks more modernish, but I Coinpayments looks to have more supported coins.

What are your honest thoughts?

[mk4]

You can use those if you want to receive altcoins as well. But mostly though? Depending on your niche, BTC only via BTCPay[1] should suffice. It's open source too.

[1] https://btcpayserver.org/

[SFR10]

I am currently looking at Coinpayments and Crypto.com

Crypto looks more modernish, but I Coinpayments looks to have more supported coins.

What are your honest thoughts?

By choosing CoinPayments, you're going to limit your customer base since they have a lot of unsupported countries and for the latter one, IIRC, it's also limited to an extent...
^{- I would go with either mk4's suggestion or "Blockonomics [non-custodial]".}