PCIGN.com has posted a nice review of Pirates of the Burning Sea. Awarding PotBS an overall 8.2/10 "Impressive", here's a portion of the summary:
Pirates of the Burning Sea is the perfect antidote to the proliferation of traditional MMOs. If you've already grown sick of elves and hot bars, Pirates will definitely offer up something you haven't quite seen before. It's highly original and it takes a lot of chances that pay off handsomely. The real time ship combat is awesome in its tactical complexity and the player economy is deeper than we've seen in just about any other game. Unfortunately, the sword combat feels tacked-on and really cramps our swashbuckling groove.
With all that said, Pirates is one of those games that is likely to discourage gamers early on. And that's a real shame, because it's precisely the type of game that gets better the more you play it. Those who are discouraged by the lack of orientation won't ever really pass through into the enjoyment of the game's richly detailed and dynamic mechanics. In short, you're only going to get out of this one what you're willing to put into it, but it's well worth it if you can stick it out through that first confusing week or two.
It's a three page review and well worth the time to read.