This game is neat for a while. Gets pretty repetitive, but the combat is a blast, so I do occasionally go back for more. The ships rely on broadsides, so it's more like 1800s naval combat. It's gorgeous, but you'll easily see where corners were cut...it IS a budget title.
It's not "another space shooter", it's a very different experience. At this sub-$7 price, I'd definitely recommend it. Keep your expectations at Medium and you'll have a good time.