TLDR: Gura is okay. Don't do drugs.
It's amazing that the VTuber that most people decided to sub to is one of the most chill ones, she doesn't treat it like she's working the coal mines, she doesn't do "help me reach number X milestone, or donate to this or that" type streams, and said she'd behave the same with 200 viewers as with 20,000. She doesn't leech, she doesn't talk anyone down either.
She's responsible and takes time off whenever she needs to. She sings well, has great humor, is loved by most of her branch co-workers, isn't involved in drama, is used for wholesome sponsorships like food and an aquarium, is an appointed Tokyo Tourism ambassador etc.
Only hololive fans themselves, with their intra rivalries, don't see what an icon Gura is. They will probably realize it when she's gone though.