Hi.
I'm relatively new. I started a few weeks ago, and have been playing the career mode.
I just got a working space plane after quite a few... unreliable attempts.
Here's a successful orbit and reentry http://imgur.com/a/sp9fA
I've a lot more parts to unlock so, eventually I'll get to the other planets.
The mods look interesting but I can't seem to figure out some of them. Kerbal Engineer works for me, just dropping it in the .\Kerbal Space Program\GameData folder, but some of the other mods like Ambient light or toolbar don't seem to work.
I'm running the GoG.com version of KSP, not the Steam version - so I'm not sure if that changes anything.
Loving the game so far. Sailing through space with every movement based on gravity is just, amazing.