KYC with NextJetHoldings is a nightmare. I submitted my ID and proof of address. They rejected it and asked for a utility bill. I sent it. They asked for a bank statement. Then they asked for a selfie with the ID. Then they said the selfie did not match. I gave up.
Pros: Helpful community forum|Clear documentation|Two-factor authentication
Cons: Limited cryptocurrency options|Website design could be more modern