I've been flying WoP for a month now.
It has the shortcomings mentioned but is still a lot of fun and was a good purchase.
As long as they don't stop with improvements WoP can only get better.
My wishlist is more maps.
The developers do not share their plans and do not believe in documentation or instructions.
I guess all the $ goes to coders not technical writters.
Short answer: fun game/similar, still being (constantly) updated, well worth the money and HDD space for me