Decent enough. Could use more worldbuilding (see spoiler below), there's a lot of "this is how it is" with no explanation. The romance didn't really do it for me either. There was nothing outrageously bad or awful, just, nothing spectacularly good either.
Certainly worth reading if you picked it up free like I did (it's definitely more competently written than the majority of the freebies I grab) but I probably won't continue the series.