I have played with Jack for over 3 years and that alone should be a ringing endorsement. The depth of his worldbuilding is incredible, and he works amazingly hard to interweave PC backstories into those worlds - often in surprising ways. The results being an opportunity for rich roleplay. His focus is always on ensuing his players are enjoying themselves and he will always work with you to ensure you are getting what you want from your games together. I have laughed until I cried, and cried until I laughed at his table and honestly cannot recommend the experience or him enough, as is deserved.