This game was a very pleasant surprise; I had barely heard about it before it had come out. But I enjoyed every moment of it, begining to end.
A large portion of the game is dialogue, and one of the Outer World's strengths is it's engaging writing and multi level branching conversations. They DO someone lack dynamics, as all conversations take a place in a shoulders up view like New Vegas or FO3. Your companions will chime in with interesting things to say and also will give you dialogue skill bonuses, It's definitely worth considering who you bring with you when you set out. For example, Parvati (played so well by Ashley Burch) gives you bonuses to persuade with how adorable she is. All of this matters too; the amount of choices you make over the game to determine Halcyon's fate is incredible and results in many types of endings. You really can burn any bridge or kill any person and there will still be a path to continue. The main story isn't super long, especially if you have good dialogue skills, but it's replayability and other activities more than make up for it.
As for gameplay, the game leaves a little to be desired with its core mechanical feel. Combat feels a little static on its own, and stealth can be inconsistent and difficult. Luckily, it has a fun slow motion ability and satisfying companion special moves. While the environments have a lot of interesting places and people, they don't feel as open as they should sometimes.
Other than that I had no other problems with this game. It's personality, world building, and humor make it 100% worth it. RPG fans, don't skip this one!!!