Never judge a book by its cover. Saguri-chan Tankentai is no exception. You may think that Saguri will go in wild, dangerous, National Geographic level adventures because of her full professional gear with goggles and everything, but it feels more like a stroll on the park (and most of the time it is). What you actually have is a simple story with a "feels good" vibe. There is no conflict or even much action in the series, it's a very light read. The characters are very basic and there is nothing really unique to make them remembered. The male protagonist is your average shut-in which is verycommon in this media (nothing against that) and the rest is nothing even worth mentioning. The lack of development between the character is another let down of the manga

The art is good, specially the colored double pages with the scenery in each chapter.

Overall it is a fine casual manga and I believe it stands out because of the Tourism theme which I haven't seen before. It actually manages to be very detailed in this aspect, if you are interested about Japan (which you obviously are, otherwise you wouldn't be reading this) you can learn a bit about each of the places explored in the chapters.