Pros
You can do it with a mobile
Cons
I took some classes with Lan Master and they thought it was OK to deduct pay from me even after paying me the low starting rate. This was because a student asked me a general question to which I provided a general answer, as I only could. I think he asked 'How can I do well on the IELTS?' to which I replied 'Study and practice, especially for speaking' or something like that. The student then proceeded to make a complaint and they deducted pay from me. This is outrageous and is actually theft as they can't legally do that, surely? So I stopped doing lessons, and asked for the deducted pay to be refunded. Their team refused, and so I said fine, get stuffed, close my account. And that was that Do they think that is a professional way of doing business? And expect to retain staff?!
