What is better, a Language Institute, Academy, or private tutor?

Question

I need to study English so I can get a promotion at my company.

Answer 1

Any of the three can be beneficial, and your time schedule and ability to pay are both key. Firstly, you may want to see what options your company have by way of training you and paying for the lessons. At any rate, the lower the ratio of students per person, the better off you will be, otherwise you are likely to be in a classroom of students who are reluctant to converse (personal experience) and this can hold you back. Go pro (personal tutor) if you can afford it.

Answer 2

A language institute it fine, its cheap and you'll learn something for sure. But then the results would come out longer because its hard to study something that you totally cant understand and with all the people around you ( i mean your classmates).
I know a few Koreans and Taiwanese who are studying english in a formal school and they speak very slow and sometimes when your talking to them they dont understand what your talking about.

so i guess, my personal opinion is that if you have enough money, its better to get your own tutor. You'll learn the necessary things you need to know since you're studying 1-on-1. But make sure that you'll get a good tutor...