Harry Potter and the Methods of Rationality

Decent, and even good, but doesn't live up to the hype. Harry is smart but arrogant and unwise, and has no real character growth arc. He never faces consequences for his foolishness, or use of his “dark-side”. Several interesting threads (like Harry seeking to understand how magic actually works with Hermione) are dropped without resolution. Dumbledore and Voldy's plotting is mostly done off-screen, which is unsatisfying.
The story is overlong for its plot content.

All that being said, there are some genuinely clever or funny moments in this, and the final battle has a great deal of tension.