hi! it can feel as real, even real-er than real life. Lucid dreaming differs from astral projection in the sense that people who "astrally project" think they are doing so but are in fact just dreaming, and in lucid dreams you realize this.

i heard you can control everything, even the event of your adventure, so if that's the case, wouldn't lucid dream adventures be really boring because you already know the outcome?
the degree of control varies. It's not like watching a movie- it's like you're really there. So imagine you are flying around in the sky, feeling the wind around you and fighter jets woozing by, or in the playboy mansion- and you can do whatever you want- infinite possibilities.