Mild spoilers follow.
Overall, Wonder Woman didn't suck. Audio design made some of the dialogue in my theater incomprehensible, but the dialogue didn't really matter that much, did it? (Although its a bit of a shame, because I normally love David Thewlis.)
More I'm mulling over the issue of blink and you'll miss it LGBTQ representation. That the Amazons are lesbian is implied by a score of secondary performers in the first act. An early battle between Amazons and Germans results in the death of some, with grief-stricken lovers. Then Diana gets an awkward line on the boat about how the Amazons prefer women. The inclusion of this line is very much a "tell, don't show" moment. After the first act, Wonder Woman quickly becomes the only woman on a team of men, a pattern likely to repeat with Justice League.
Diana's own sexuality is left thankfully ambiguous. While there's an implied love scene involving a closed door and a light in a window, it passes without much in the way of comment. Wonder Woman neatly avoids the usual "conversion" narrative that pervades science fiction where a single-gendered culture discovers the joys of superior heterosexual love. If anything, the relationship strengthens Diana's moral compass that even flawed humans are worth protecting.
On the one hand, it's nice that LGBTQ people are moving from completely invisible to marginally visible. On the other hand, DC and Marvel have a long pattern of keeping their LGBTQ characters primarily on the margins of their stories. Wonder Woman is probably the most high-profile character to come out of the closet in the comics. Maybe that will be explored in a future movie, but I'm skeptical.
It's also worth noting that Wonder Woman was created by a man in a queer, polyamorous relationship so that subtext was there all along.