About book critiques: I would not trust critiques written on book covers. There are several types of critiques: self-opnionated ones; dishonest ones; sweet ones; trustworthy ones; plain laughable ones. So, I usually ignore them, and just dive into reading the book.
Which one is better, books written in present tense or past tense? Of course, regardless a book’s quality, it really depends on writers’ choice for his or her book. If a writer thinks that present tense is a better fit for his or her book, it should be written in present tense, or vice versa.
Usually I like books written in past tense. Books written in present tense, however, give you a sense of immediateness of the story, which is why some writers choose the method for her or his book. When I want present tense for my book I would only use it for the first paragraph or first chapter, and then switch to the past tense for the rest of the story.