I bought this game after enjoying Star Wolves 1 but was really disappointed. I only got a few missions in due to this game being a buggy mess. My pc is a mid-tier running windows 7, played many games (old and new) via steam and this is the first one that I found unplayable.
Star wolves 1 played alot smoother. This game also offers very little improvement over the first one (even recycling alot of character portraits etc). It offers an open world via portals, replacing the end mission rewards page with alot of unnecessary travelling to and from each mission/trader. The dialogue is also very offputting, comically so. Every line is delivered without emotion or emphasis; jovial banter or life and death threats are delivered the same way. Other than this, it plays just like the first.
I could not recommend this game, it is a gamble as to whether it will work, if you'll get game ending bugs or just minor ones. (The bug which affected me prevented mission obectives from triggering and somehow this affected every save file since the start of the game). If you enjoyed the first game it might be worth a gamble, but this game offers no improvement over the first.