I like the idea of the PSO, and passed both basic and core quizes easily. However, the SNG lesson and quiz seems too structured and seems like robot play. It sure would be nice if they showed the correct answers to the questions missed. Not knowing which ones missed makes it difficult to evaluate. Have read many books and played lots of brick and mortar games (both cash and tournaments) successffully. I believe there are good, legitimate reasons for not playing exactly as they indicate.