Yes, it's full of bugs, relatively short, and linear for a CRPG. It's still one of the best short SF adventures you can play, with an oddly hopeful vision of our post-nuclear-apocalypse future. It's combat heavy if you want it to be, but build a different kind of character and you can waltz through a lot of encounters without violence.

I can recommend the Fallout1in2 project (also known as Fallout Et Tu), which ports the original campaign to the Fallout 2 engine. You can also use the excellent SFall and FO2Tweaks mods to address some of the remaining issues - although be prepared for constant crashes and occasional save game corruption.