There are some IMPORTANT Traits by which i JUDGE an ANIME [Written in Descending ORDER]
1)PLOT and STORYLINE
2)ENJOYMENT/EXCITEMENT while Watching the Series
3)CHARACTERS & CHARACTER DEVELOPMENT
4)WORLD BUILDING
In case of Solo Leveling Season 1 -
1)I think that this ANIME really Lacks in terms of a SOLID STORYLINE. The main Plot of whole Anime is pretty MEDIOCRE to ME
{also Point to be noted that as this was my FIRST EVER Anime based on a MANHWA and except SOLO LEVELING i have never watched any other ISEKAI or read any MANHWA... i didn't knew that almost every other ISEKAI or Manhwa is based on these DEMON's or Defeating DUNGEON BOSSES etc. but still these kind of PLOT are MEDIOCRE in my opinion }
Currently the main objective of JIN WOO is to Level UP more and more so that he could save himself and his family from that S RANK HUNTER and also to GET the ELIXER OF LIFE from that DUNGEON and Finally Cure his MOTHER's disease of... except these two things there is the build up of JEJU ISLAND...which was not at all of any significance as OF SEASON 1 of the ANIME...
so OVERALL in terms of STORY it is [7/10]
2) TBH i really ENJOYED IT!. The ANIMATIONS,SOUND DESIGNING,ART STYLE and specially THE VOICE ACTING was Absolutely AMAZING. And also IMO The OPENING and THE ENDING was GREAT!! at first i only Liked the ENDING and didn't liked the OP but after listing to it Several times it got better and better...also I never even heard of this STUDIO before but the QUALITY of EPISODES they PROVIDED in this SEASON was so good that it Sets the BAR very HIGH for other NEW ANIME's to overcome in the FUTURE....
In terms of Enjoyment [9/10]
3)This Season Focused so much on only JIN WOO's Character Development.. that i simply don't care about any other characters its not like i didn't like other characters. There were some good characters like - Joo Hee , Kang , Kim , Jin hoo etc. its that they didn't hold any MAJOR SIGNIFICANCE in the STORY till now that i start to CARE about them. Although JIN WOO's Character Development was simply AMAZING..so in terms of Characters [7/10] and Character Development [8/10]
4) Last is the World Building which i think was Average...only things that they showed us was Different Types of Guilds, an ISLAND whose entry is DENIED and which will play a significant role in Season 2 and Different Types of Dungeons Nothing else which Add up to the WORLD of SOLO LEVELING although it's just the Start and i understand there is a limit of how much you can cover in only 12 EPISODES so will see what else they will show us in the UPCOMING SEASON's...that's why i think..
In terms of World Building [7/10]
Overall I think SOLO LEVELING SEASON 1 was VERY GOOD and i will be looking forward for Upcoming Season's
Overall Anime Rating from MY POV - a SOLID [8/10]..