The story is the classic isekai with a few changes, the first is she can move between the two worlds, the second is that the MC is a girl and not into the "I'll save the world" trope, she's an orphan that lost all the family (somehow) so she's more worried about making money to have a pleasant life. Just this changes and the resulting isekai is quite different from the standard of the genre.
Author has his feet on the ground for the most part, actions and events mostly make sense and are coherent with the world and characters, people don't bully anyone on sight, bandits don't attack each and every traveler, not everyone is instantly in love with the MC or mesmerized by her, and so on, it's so sad that this kind of normal things enters into my positive points... speaks volumes of the standard of the genre. Seregosa finds some ot the things stupid and some are but I don't agree with the examples, if put on the spotlight after already recieving a huge gift of space travel not everyone can think of "I wanna be immortal", most importantly, the MC is already OP, giving more power to her wold break the story imo, the sensible thing is to just accept the first couple of chapters as an excuse for the setting the pillars of the story, yeah, he could have done better but it's not bad either.
I on the other hand find annoying other minor things, like the MC being unconscious for 5 days with no IV only to wake up as if she just slept 8 hours, not even a parched throat or how the author seams to think that common food and dresses of the modern day are more luxurious that what nobles ate and wore in the past, as if something you buy in the supermarket with pesticides could taste better than an organic cultivated product, or a dress made by a master tailor be compared to a dress made by a random designer, etc., small things that dissonate. Like this there are quite a few inconsistencies, although, some of them or most of them are intended puns, you just have to get the reference, I don't find it particularly funny but that's my opinion.
Where the manga shines imo is in the MC, she has a head on her shoulders and thinks things through and has some insight, also, she often chooses not to take advantage of situations saying life would be boring that way, I just take it as it comes in this case. Also, I like her not shirking from using things to her favor when she wants to, like lying a little or being able to take a more gray stand on some aspects, even preparing her mindset to kill if necessary, to a bit of an abnormal degree in fact, she is after all a modern age Japanese girl, being willing to kill from the get go with no adaptation is kinda shocking (maybe her family's death plays some role here? unknown right now). I think she's a great char. An she even denies people's requests firmly, a tear runs down my cheek each time, after reading over and over mangas, manhwas and manhuas were the MC just accepts whatever BS just because the other is insistent, just a singly "no thanks" is so new! She's a bit odd and makes quite a few blunders, also, she's labile and might go ballistic but this little girl has entered my top 20 favorite char list!
Other than that, art and drawings are good but not particularly great nor cute and the comedy is so-so.
Poor dragons