This book is at once an examination of love hotels, a guidebook, and a look at Japanese attitudes toward sex. It's very readable and interesting, with lots of good information to let you know how love hotels evolved and what their evolution tells us about the sexual culture in Japan.
First of all, the hotel descriptions are great, and you really feel like you're there in a Yakuza snowman hotel, a pirate room, or an S&M dungeon. The author went out and talked to a lot of love hotel workers and used a lot of Japanese sources for the book, so it feels really authentic. There's information about love hotel crimes, design, the business side, and an etiquette guide too. He even included little diary entries from guests about their sexual escapades throughout.
The last chapter has around 20 pages of reviews of love hotels in Japan's major cities, so if you've ever wanted to visit one, it will help you navigate to a good one and help you figure out the check-in and payment procedures.
If you enjoyed books like Nicholas Bornoff's Pink Samurai or Tokyo Confidential, you'll probably like Love Hotels too. It has the same kind of information about the weird side of Japanese culture that is so popular today.