Integration will be very tough, I haven't looked into that though. I had some up close experience with it last year and learned a lot. I ended up with several account last year and ultimately liquidated and got out.
Biggest things I learned are:
1) The value changes daily, sometimes dramatically, unless you only accept US Coin or similar which follow the US dollar or some other hard currency. Check out the cost of Bitcoin over the last year.
2) It's incredibly easy to use, once understood, and bypasses exchange rates and income tax. Not easy to get an account setup or figure out though.
3) There is absolutely no protection in it since it essentially can't be tracked back to a person. You put it in the wrong account and it is gone forever.
4) Spammers prefer it since it can't be tracked and that is probably what has driven the price up. Virtually all online scams use crypto now.
5) I'm not sure how you track where money came from unless it is integrated so you can catch a member name before sending them to the form.
6) There is no way to refund anything without an integration
7) crypto knows no borders. It is like a world currency. Also means it is unregulatable.
There are two ways to transfer money. 1) by QR code or 2) by account text code. Only an email is required beyond that and it doesn't have to match the email on the account.,
The text code is about 60 characters and virtually impossible to type in so it is cut and paste deal. If you type in the code wrong and it matches another random code then the money is gone into thin air. POOF. you have no idea who got it. None of it is really regulated, much like the rest of the internet, and is very anonymous.
You won't get a human name for who sent the money in either case, just the huge account text code. So keeping records will be nightmare without an integration to capture the data upfront.
They pay a fee to send money and the receiver doesn't pay the fee. The fee is determined by the senders account and can change daily as well as by exchange so if you want a specific amount it will be virtually impossible to tell them how much to send. These big companies are probably padding costs or playing games with taxes to cover that. There are hundreds of exchanges ranging from legitimate to very shady. None of them know account numbers from other exchanges. You will have no idea what exchange they are using either.
If you lose access to your exchange account, it is not just a simple password reset to get it back and there is no number to call. It more like 15 random codes that you need to save upfront. If even one of them is wrong and you lose access then you will never get your money back.
In short its basically designed for criminals and they love crypto.
The kids under 30 don't look at any of this. They just look at how easy it is. These are the same kids that put all of their life online and think that is just perfectly safe. Granted its a powerful demographic but that doesn't mean it is safe or good idea.
Having said all that, I will say it is the future. Once governments move to it then it will a cardless society but everything that makes it desirable will be gone, at least with the gov't backed stuff. My bet is the govt backed crypto will fail and everyone will still use the unregulated stuff since it is impossible to shut down or track. That will be a bad day for the world economy. I'm hoping to be gone by then.