From the ones I checked, not bad. It's a rigid plastic, unlike the Reaper Bones range, and while obviously the detail isn't as good as metal or resin, it's definitely on a better level. Good enough to put down as wandering creatures certainly.
They're all fully assembled (a huge bonus for me,obviously!), and as far as I can see (without a long and detailed look) all one piece with no obvious mold lines (that I can see, though to be honest, I miss a lot of mold lines at the best of times!).
Happy enough with the investment ($80 including shipping, so about £60).
They've got a second set coming next year too, though they've raised the price a little (218 models for $75). I backed, so have access to the pledge manager.
https://www.kickstarter.com/projects/bl ... tures-game