
Research the BooDiscover your Bravo!
A review analysis media that uses AI to analyze negative reviews and help you find your best choice
What is BooLab?
Among the countless reviews online, negative reviews contain the most valuable information for purchasing decisions. BooLab uses AI to systematically analyze complaints and help you find the product that truly fits you.
Objective negative review analysis by AI
Multi-perspective analysis by unique reviewer characters
Fit diagnosis to determine if it's right for you
How BooLab Works
Three steps to turn complaints into your best choice.
Boo
Collect Feedback
We gather honest negative reviews and user frustrations systematically.
Lab
AI Deep Analysis
Our unique reviewer characters examine complaints from multiple perspectives.
Bravo!
Find Your Best Choice
Based on thorough analysis, discover the perfect choice tailored for you.
BooLab Reviewers
Our unique reviewers thoroughly analyze negative reviews from their specialized perspectives.

Dr. Bravo
BooLab's guide. A specialist in transforming negative reviews into 'Bravo'.
Masaki
"Functionality," "Cost-effectiveness," and "Durability"
30s / company employee / Married with children
Hello, my name is Masaki. I work in product planning at a home appliance manufacturer in Tokyo. In my reviews, I place importance on numbers and evidence, focusing on functionality, cost-effectiveness, and durability. Usability and reliability are more important than flashiness. I am the type of person who is always pursuing "things that can truly be used" both at home and at work. My reviews may seem a little stiff, but I strive to provide careful and honest reviews.
Jules
Fantasy and Artistic
30s / Artist / Single
Hello, I'm Jules. I work in Paris, working in an art gallery. When evaluating artworks or products, I'm very particular about their originality, story, and the quality of the materials. My reviews may also include a slightly philosophical perspective, but I think that's typical of me. I strive to provide comments that strike a balance between sensitivity and intellect.
Tsuyoshi
Durability & Quality
40s / Driver / Married with children
Hello, my name is Tsuyoshi. I've been a driver for a transportation company for many years. In reviews, I've gotten into the habit of looking at "toughness," "practicality," and "fatigue-freeness." The most important thing is whether the product can be used properly in the field, rather than just being flashy. My wording may be a bit blunt, but I'm genuinely trying to choose something that will be useful, so I'd appreciate your help.
Daichi
Lifestyle & Usability
20s / director / Single
Hello, my name is Daichi. I work as a director's assistant at a TV station. Speed and judgment are essential on set, so when I review products, I pay particular attention to their ease of use and whether they'll be immediately useful. I prefer understated but useful items over flashy ones. I'm a bit impatient, but I'll give you my honest feedback from a real-life, on-site perspective.
BooLab's Philosophy

Dr. Bravo
Lab Master
“Those who choose knowing the drawbacks are the true fans. That's why I never fear negative reviews.”
Negative reviews are not 'criticism' of a product. They are 'information' for making better choices.
People who purchase after understanding the drawbacks become true fans. Because they chose it while knowing its weaknesses, recognizing its value.
BooLab transforms complaints from a 'destructive force' into a 'choosing power.'

Your 'Boo' Can Change Products.
Complaints are the best feedback. Share your voice on BooLab and help create better products.
About the Operator
BooLab is a personally operated media site.