The main complaint of this wallet is that it has high commissions, long withdrawals, and the presence of verification, which is not great for the crypto industry. And also that the Payeer system is used by all kinds of crooks.
Despite all these shortcomings, Payeer remains one of the few methods available in countries whose residents do not enjoy international payment services. I live in one of those countries. Even before you support cryptocurrencies, this bank is widely used and users from those countries can buy cryptocurrencies on peer-to-peer platforms as well as make sales because the balance can be sold later.
I stopped using it a long time ago but I know a large group that use it as a primary method for their international online transactions. Matching it with crypto will be a good feature for them.