What are your favorite Ethereum-based projects or dApps?

There are so many novel and interesting projects/dApps that are being built on top of Ethereum, and I'm curious to hear what some of your favorite projects are. Here are some questions that I have in regards to this:

• What Ethereum-based project/dApp are you most excited about, and why?
• Have you used any Ethereum-based projects or dApps that have had a significant impact on your life or work?
• What sets your favorite Ethereum-based project or dApp apart from others in the space?
• Are there any upcoming Ethereum-based projects or dApps that you're looking forward to trying out?

I want to get more involved in this space and am looking forward to hearing more from you guys!