As of release (0.9B)
+ Kerbal's are cute and fun to interact with (sent screaming into space)
+ The complex physics of space flight is accessible
+ Hugely sense of reward in achieving even small steps for Kerbal kind
+ Lots to do and experiment with
+ Regular updates and an active community of modders
+ Sound already is fun and adds to the atmosphere
~ Graphics are not phenomenal but are appropriate
~ Loading times are unoptimised but nothing bad
~ Some interfaces are unrefined but totally functional
- Still in Beta so issues are forgiveable and probably being resolved
- Tutorial leaves out useful info and needs expanding
- Sponsorships are not easy to figure out and broken
What a hugely fun and charming game that demands your love and attention. You care about your dim lil Kerbal's and it's fun to see them flounder and succeed. The science is well packaged to be accessible and if you take the time to experiment and read around the subject it becomes all the more rewarding.
Recommended for those who like space, science and being educated as they are entertained.
Conclusion: 8/10. A work in progress you can invest hours of enjoyment in already.