This was an interesting take on "isekai". Yes, I can agree with some other readers that Satou seems more powered up than Kirito from SAO, and it can be irksome to hear Satou keep questioning or relying on his assumptions of him dreaming everything. However, I am curious as to see what exactly his being in the other world would entail. Because it doesn't seem as though we've been thrown into the idea that "he's the main hero and has to save the world in order to get home", at least from my first impression. I want to keep reading a little more before giving a better review/a continuation of this review.
So far I would recommend to those who like the isekai genre.
(Oh, and for those who are curious about the "harem" trope, I don't necessarily see a formation being brought about for the MC. Though there are a number of girls he encounters, I didn't see anything blatant like a flash of underwear or whatnot-just a bonus chapter that seemed a little over-the-top. Whether this concern becomes more apparent in later volumes will have to be left up to the future)