I highly recommend Michal Yoon if you are planning to find a lawyer for your visa. I got both my work visa and resident visa in 2016. At the beginning, I was planning to work with Michael only for my resident visa because my work visa was supposed to be easily approved. However, as my application had been almost declined, I asked him to assist me and he jumped in. I got my case officer replaced twice and finally I got my work visa approved, thanks to his big support. After 4 months later, my resident visa was approved, which was unsurprisingly quick because it was only 2 months after I submitted my application. This is due to the battle with NZ Immigration at my work visa application.
I really appreciate Michael because his response was always in a timely manner and his explanation was easy to understand. Without his assistance, my resident visa wouldn't have been approved.