Mr Lim is someone who can cater to any standard, no matter how weak or strong you are. He never leaves the weakest behind, instead being patient in his teaching and eventually helping them understand even the most profound of concepts. He also does not hold back those who are not as weak, as he manages to still devote time and resources to help them patch up their weaker areas. Regardless of your standard, I recommend Mr Lim, and of course an obligatory thank you to him for being among the most patient and competent teachers I have come across in my schooling life!