In my experience, IELTS candidates who are closer (or already on) the band score level that they are targeting and just need a quicker, shorter course will want lessons ONE-TO-ONE, 

while 

the GROUP format is useful to help learners MOTIVATE each other for a slightly longer haul…

What do you think? What’s your experience and which format do you prefer?

— —

Hi. I’m Fatime. I’m an IELTS Teacher Trainer, helping CELTA-qualified English language teachers become better at teaching SKILLS, as opposed to just testing them. 

Check out my courses here:

How to Teach IELTS Listening:

How to Teach IELTS Reading:

How to Teach IELTS Writing:

How to Teach IELTS Speaking: