How many of you use the kjv
KJV is a good starting point because it is written in older high English. It's hard to explain why it is important, but it is a more precise language than modern common English.
It's a great way to learn more about English overall, even if you are native English speaker. And from a better And if English is your mother-tongue, the more you grow your understanding of English, the better you will be able to grasp what the Greek manuscripts really mean when in your mind you internally render it into English. It's a huge leap and bound to actually be able to think in a language that isn't your native tongue (or learnt early in life).
Lines like "I am become..." isn't part of common modern English, but it makes sense and expresses a grammatic tense that common modern English usually has problems expressing.
I wouldn't go so far to say that any particular translation is going to perfectly capture the meaning of the source manuscripts, but it is a better approximation than other attempts. The caveat is that KJV requires you to have or build a strong understanding of English in order to grasp the way that it is written. It isn't necessarily entry level, in the same sense that Shakespearan plays aren't entry level. A general audience will understand much but might miss nuances. So reading another version alongside KJV can sometimes help clarify the meaning of KJV.
KJV also has the benefit of being untainted by modern politics.