Quite remarkable for an Alpha.  I'm not sure I encountered any notable bugs.  The gameplay is great, the setting is great.  The game's mechanics are either self-explanatory or well-explained.  Most of the still art is good, but some of the semi-animated sex scenes are a bit janky.  I capped out and unlocked everything (I think) by the end of winter, and at the time of this writing (Alpha 2.6.1) there is no new content beyond that, sadly.  But its enough to keep one busy for a little while for sure.