I'm not sure, I guess there are bad sides to any EMI. Although I completely disagree with
@BerlusconiSchmidt that one would avoid ever getting asked questions by using a high street bank instead of EMIs. It's not really normal to get 'spammed' with requests for information about transfers unless you are doing something suspicious and/or not what you stated you will be doing when getting onboarded. The EMI wants to keep you, not get rid of you with limitless question-asking.
But I've had over 8 figures through Airwallex over the past couple years (don't remember when I started using it). I had a request for information once, with a larger bank transfer to a 3rd world country for support services. Never did I experience problems receiving funds, exchanging currencies (which the rates are actually pretty good for), or getting other companies onboarded.
Just know that Airwallex NL and UK can be a pain. I think that's mostly the local regulations; HK and LT are working fine from my experience, and I haven't used US LLCs so I am not sure about AWX US.
After all, I do not really see a problem in providing a document on a transaction that they or their bank has questions about. The Airwallex process shouldn't be complex, and it shows that they want to maintain relationships with the high-tier banks they use.
Just a small correction, the entities are based on the company registration, unrelated to the UBO.
The list is available from
this link.
I would recommend avoiding Airwallex if you fall under NL and maybe UK. Not sure about people's experiences with the others.