Dusty Attenborough

Bipolar is great at balancing encounters and making the environment comes alive. You can interact with almost all NPC and they don't feel like copy pasted characters. You have a lot of player's agency and can be rewarded or punished accordingly, so you quickly know that just like in real life you can't just run around and be murderhobo. Or you can but just deal with the consequences. Overall, good DM. Good friend. Worth every pennies.