I'm a long-time player of the Champions/Hero System and superhero games in general. I came across Len's original Prowlers & Paragons game and fell in love with it right off the bat. When I heard there was an Ultimate Edition in the works and that Sean Patrick Fannon was going to be part of the creative team, I jumped into the Kickstarter with gusto. As a backer, I got to see the evoultion of the game, and even provide some feedback to help it develop.
P&P UE fulfills everything I'ver ever looked for in superhero RPGs. The system is simple to pick up yet flexible enough to handle just about any situation a GM might encounter. Character creation flows easily, and the powers list really does let you come up with just about any crazy concept you can think of.
Combat runs quick; task resolution uses dice pools and opposed rolls to get a quick result and efect. It combines both crunch and narrative elements in equal measure, yet allows the GM to emphasize one over the other to fit their preference. It also makes use of a boost point mechanic (called Resolve for heroes and Adversity for villains), which allows the player to hande those once-in-a story situations when the character has to put that extra heroic effort to succeed, or come up with an outside-the-box application of their abilities.
Because Sean and Len were quick to share the game with backers and other interested parties to help provide feedback during development, there is an already-active community of players ready to support and enjoy it. There is a Facebook group, a Discod server, and support for the game already set up in the Astral VTT.
To sum up, if you're into superheroic gaming, this is the system that I believe will become the standard for the genre from now on.