Well, I'm playing WoWP since this summer. The recent release has a major bug that makes the game crash every 5/6 games. It's been adressed to developpers.
I agree I would have prefered a cockpit view for everyone, and no target highlighting. There are better games for warbird sim for sure.
What I love ( and often hate
) in WoWP is the online part because you'll never have the same game and never use the same tactic. You'll never find an AI that will fly at 100ft in a canyon. The behavior is very "human" with its fails.
It depends on what people prefer but I've learn many dog fight skills with this game and it will help me to reproduce more scale figures with my rc models.