MONESTIR - Impermeabilizante para Grietas y Juntas - Terrazas y Áticos - Suelo y Pared - 1 Litro

MONESTIR - Impermeabilizante para Grietas y Juntas - Terrazas y Áticos - Suelo y Pared - 1 Litro

ASIN: B01IA59AM0
Analysis Date: Jan 30, 2026 (re-analyzed Jan 30, 2026)

Review Analysis Results

A
Authenticity Grade
8.00%
Fake Reviews
3.64
Original Rating
3.50
Adjusted Rating

Analysis Summary

Based on a comprehensive analysis of these 12 reviews, the overwhelming majority appear to be genuine customer experiences. Approximately 92% of the reviews show strong indicators of authenticity, with only one review raising minor suspicion. The verification rate is high, with 10 of 12 reviews marked as verified purchases (V), further supporting the legitimacy of the feedback. The reviews display a natural distribution of ratings (5 five-star, 2 four-star, 1 three-star, 2 two-star, 2 one-star) that reflects real user experiences rather than coordinated manipulation.

Multiple reviews demonstrate clear authenticity through specific personal context and detailed application experiences. Review #1 provides a thorough, step-by-step account of preparing and applying the product to terracotta tiles, including specific cleaning methods and testing procedures. Review #8 offers extensive detail about applying the product to 60 square meters of tiled terrace using a roller, mentioning seasonal timing and performance after rains. Even critical reviews like #4 and #7 provide specific failure scenarios (applying four coats without effect, using it for a stone pond) that ring true as genuine disappointments rather than generic complaints.

The only review that raises mild concern is #10, which consists of just four words in French ('Oir le résultat dans le temps' - likely meaning 'To hear the result in time'). This extremely brief, somewhat cryptic review could potentially be a placeholder or low-effort submission, but it's not clearly manipulative. There are no patterns of marketing language, repetitive phrasing across reviews, or suspicious timing that would indicate organized manipulation. The mix of languages (Spanish and French) and varying review lengths appears organic.

Overall, this review set strongly reflects authentic customer feedback for a waterproofing product. The detailed positive reviews contain specific application methods and results, while the negative reviews provide concrete failure scenarios. The single brief review (#10) is insufficient evidence of manipulation, especially given the strength of the other genuine reviews. The product appears to work well for terrace and tile waterproofing when properly applied, but may have limitations for certain materials or applications based on the mixed feedback.

Key patterns identified in the review analysis include: Detailed application procedures, Specific material mentions (terracotta, tile, stone), Performance testing descriptions.

Review Statistics

233
Total Reviews on Amazon
-0.14
Rating Difference

Price Analysis

As a specialized waterproofing product for cracks and joints, this appears positioned in the mid-range of the Spanish market. Check multiple Spanish home improvement retailers (Leroy Merlin, Bricodepot) for price comparisons before purchasing. Given the 3.64/5 rating, verify recent reviews address product performance rather than shipping issues.

MSRP Assessment

Estimated MSRP: Unknown
Source: Unable to determine
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: €15-€35 per liter
Value: This specialized crack and joint waterproofing product offers targeted protection for terraces and attics, justifying a mid-range price point compared to general-purpose sealants.

Buying Tips

Best Time to Buy: Best purchased in late winter/early spring before peak home improvement season when demand and prices may rise.
Deal Indicators: Look for bundle deals with application tools, free shipping thresholds, or discounts when buying multiple liters for larger projects.
Watch For: Watch for unusually low prices that may indicate old stock, counterfeit products, or incorrect product listings for specialized waterproofing materials.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 30, 2026

Understanding This Analysis

What does Grade A mean?

This product has excellent review authenticity. Our AI detected very few suspicious patterns, suggesting the vast majority of reviews are genuine customer experiences.

Adjusted Rating Explained

The adjusted rating (3.50 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (3.64 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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