I really enjoyed Eclipse Phase the couple of times I’ve played it at conventions. The system didn’t do anything for me, but didn’t take away from my enjoyment, and did the job. Looking at the character sheets, I think the systen might get in the way if I wasn’t using pre-gens or was GMing.

I quite like Fate for SF (and have run some really good Transhuman Space with my own hack), but I feel something built for it could do better. Not that this helps anyone who’s not a fan of Fate either.

I really want a nice “modern” system for hard “solar system” SF, with details in the right places, and bolt ons for some of the top notch gear, without dwelling on it for whatever is typical in the setting. Something built ground up to suit a cool setting. But I haven’t found anything that does it perfectly for me (unlike fantasy or horror where I have things that are almost perfect for me and particular genres of those).