He taught me how to read the difficult Shabbad, like Slok Seheskrits and Gatha ang 1353-1361, rag Tlang Mehela 1 Farsi Shabad ang 721, Jaidev Pada ang 526, and the Sweyas starting ang 1387. I will miss him. He completed my first Sehaij Paath. I am a white American Sikh.

I do not understand his kathaa, because I do not understand modern Punjabi. I am only accustomed to old Gurmukhi. But I have heard mixed opinions that he is either a great preacher or a paraya, because some people complain that he was twisting Hindu Interpretations in the Guru Granth Sahib. I will not judge him, but it's best to say "I appreciate the good he has done." and let's keep peace in the Sangat. Many preachers mix up Baba Ji Saint kache banee and Hindu stories because the sangat likes to hear it, and they make more money. Some preachers are spnosored by the Indian Hindu Religious politicians to Hinduize Sikhs.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/maskeen/2002-gyani-sant-singh-ji-maskeen.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=2002
Since I don't understand Sant Maskeen modern Pujabi, I can at least say I was glad to have him as a teacher who was willing to take time out to help me. Some other preachers are greedy and don't have time. A few other teachers helped me too, such as former head granthi of Harmandar Sahib Giani Jagtar Jachak, Giani Gubachan of Thailand, and Giani Kuldeep Singh of Fairfax, Virginia USA.