[LostCommander]

I agree with the "almost a disadvantage" PoV. The games I play are always with "Can only colonize atmosphere type." option in the game setup (which obviously affects my PoV). This means that there are NO gas giants I can colonize (yes, I am still trying to eek out a living amongst the moons) and production can be seriously hampered (the population production / construction bonuses are NICE) unless I am lucky with the map. Great use of units and the proliferation of SS construction yards in my empire nicely balances it though. If one does not mind utilizing units extensively, the extra moons (which often outnumber the possible gas giants with a breathable atmosphere for other races) are perfect. Also, with one or two trustworthy allies, moons can make great supplemental defences for an ally's planet.