It's a shame that TSR decided to use the Buck Rogers licence for the game - I won't get into why they decided on that setting - because I do feel that if they had made the system more generic, less setting focused and scaled back the starship system a bit it would have made a really good D&D sci-fi game.
I still have the game and every now and then I get it out and wonder 'what if...', but I've come across other games that take the OSR system and make it their own and, in many ways, use it better.
The primary one, which always impressed me, is 'Stars Without Number'. This is an excellent game from Sine Nomine Publishing that really puts the rules to good use, gives the GM plenty of material to recreate their own setting and is just a really well presented and laid-out game. If I was going to create a huge, long-running campaign this is the game I'd choose.