Note: This review encompasses the entire series, rather than just the first season. Keep that in mind while reading. Thanks!!
When anime fans start talking about shows that began their interest in japanese animation, many people point to the fact that their first experience with anime (whether they knew it or not at the time) is Sailor Moon. It's one of those anime shows that people fondly remember as the basis of "how to do anime right" for future shows of its kind. Even when comparing it with today's new trends, plots, characters and animation, it is easy to notice why Sailor Moon is fondly accepted into the hearts of anime fans around the world.
In my eyes, you could not have picked a better anime to become immersed into the anime world than with Sailor Moon. And a big reason for that is the intricate and well-developed plot, arguably the strongest feature Sailor Moon presents. At the surface, you can say that it's your typical "children rising up to save the world" theme. However, this magic girl anime show presented unbelievable twists to the plot that included five different main story arcs with amazing depth to each of them and somehow, it always able to weave itself flawlessly back to the central theme that encompassed Sailor Moon. To top it all of, when you watched Sailor Moon, it was able to emotionally draw you into the show with ease, where you undoubtedly had your favorite sailor scouts and actually cared about each and every character and what happened to them. Very few anime shows back in the day (early 90's) were able to do that, and though we see it more often nowadays, its still a special skill that is needed.
Again, because of its 1992 creation, the art obviiously seems old-fashioned and not as crisp as what you watch nowadays. But if you really think about, each character was drawn well, each given different physical characteristics that separated each one from another and the backdrops used were well detailed to an extent. Sure, there were a ton of repeated frames (namely during transformation), but what anime nowadays doesn't have them? In all, it still holds up very well, even in today's times.
Depending on what version (English or Japanese) you are most familiar with and most vividly remember, the sound preference of the show could go either way. While I personally did not have a problem with the English cast, the Japanese cast also voiced each character pretty well. The voices of each character gave of enough feeling and emotion, which helped draw the viewer into the show even further. The music was so good that there have been hundreds of performances, many musicals and an ample amount of released soundtracks that have been much appreciated by the public.
Again, one can also argue that the strongest point in Sailor Moon was the plethora of characters they introduced, each one of them having a significant part in the grand scheme of things. As I stated before, everyone picks their favorite sailor scout, and to me, each scout's character personality seemed to fit their represented planet quite well. They took their time with introductions of characters and the development was amazing, with new powers, techniques and relationships acquired throughout the entire series. The one downside people may bring up is that they may have been *too* many characters and with that, the focus is turned away from the main ones. On rare occasions did that occur in Sailor Moon.
Weaving all of this together, Sailor Moon is easily one of the more enjoyable "old-school" anime shows out there. Almost every episode had some kind of meaning towards the overall plot and a lot of the battles can't be called anything short of epic. However, a big question mark on whether or not people enjoyed Sailor Moon was their views towards romance. Love was one of the bigger themes of this show, seen strongly epitomized between the characters of Usagi (Serena) and Mamoru (Damien). If that was something you loved, chances are you favored this series more so than people who didn't find that factor appealing.
All in all, Sailor Moon is one of the shows that started the anime trend outside of Japan and they could not have picked a better show to showcase than the Sailor Moon franchise. With a great cast of characters, a lengthy, emotional series involving epic clashes between good vs. evil and a highly well-developed plot, Sailor Moon is a show that if any younger anime fans out there haven't seen, or if the older ones thought was too "mushy," you should give it another try. Who knows, it just may be right up your alley.