The problem with the romanization is, that you still need to know how to pronounce it. 비 would be romanized as 'bi', but the pronunciation is 'be'. So if you don't know that the i in the romanized text stand for an e-sound, you still miss it. Learning the hangul wil actually help you get closer to the way it is meant to sound.
yeah thats the exact same problem i have with the romanization~ and everyone thinks differently about it etc the only real way is to learn it