If you read the run between 7-38 as a comic NOT connected to the movies, and you don't mind Infantino's art, you'll find it's a pretty entertaining sci-fi comic.
Marvel's Star Wars was a bridge for my return to reading comics. I'd read them from about '73 to 77, then dropped them for sci-fi mags (I was a complete Star Wars nutcase!), and came back to comics in 1981 with Star Wars #51. Then completed my run from #1-50.
I read the series until just after ROTJ when everything went south. The book past that point is HORRENDOUS. I don't recommend anything past #81 or so.
The period between ESB and ROTJ are the best. Good writing and great art. Frenz and Palmer were superb. Simonson was great, too.
Publishing the ROTJ adaptation as a separate LS was--if nothing else--a chance to sell two SW comics a month that summer.