Any comparison between "I can read", "kumon English", "KRTC" or other enrichment class

My boy was enrolled into I Can Read last time for about 8 months. I did not see any improvement on him so I withdraw him. The teacher was encouraging but I feel they did not understand my concern as my boy did not know how to read at K1. I would strongly suggest KRTC read-in-a-week phonics class! It helps my Son greatly in understanding English, reading and speaking too. He's able to read well after attending the lessons for few months and shown great interest in it.