Black Desert Pearl Abyss steam or the customer in 2020? (Black Desert)

Good time of day.

A question for knowledgeable players in Black Desert.
What platform should start the game beginner, on steam or Pearl Abyss (off. the website)?
All I could find on the Internet on this issue is that all recommend to play on the client Pearl Abyss off. site. No one really provides no explanation for this recommendation. Found out that the server is one for all (RU and CIS segment). I know that to transfer a character from PA on steam and Vice versa is not possible. As part of the services not available on off. the website players who have come through uchetku steam, it is critical work for steam or similar services adapted for him?

PS I am those who stood before the choice of site for the start of the game, to discuss in detail the pros and cons. For earlier, thank you very much for answers)