iRobot Roomba 650 Robotic Vacuum Cleaner (Vacuum + Replenishment Kit) From iRobot Report Feedback
Report Last Updated: Nov 23, 2017
Our full report will examine approximately 3.2x as much data, but requires considerably more processing power. Enter your email to receive a notification when the full report is complete.
Click a test to jump to details
Most Trusted Reviews
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.5)
We discovered a total of 17 deleted reviews for this product, with an average rating of 4.4. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
4.4 average rating of deleted reviews
Read more about our Deleted Reviews test.
Less than approximately 10% of reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 5.0 while the reviewers who have posted more than one review have rated this product an average of 4.3. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Less than approximately 10% of reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Example critical reviews
-5.5 average net helpfulness for positive reviews
-12.0 average net helpfulness for negative reviews
Read more about our Skewed Helpfulness test.
Less than approximately 10% of reviews use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
- Created on high-volume days
Read more about our Rating Trend test.
1,433 of the 6,515 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
- Have an overrepresented word count
Read more about our Word Count Comparison test.
Approximately 20% of reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
4.2 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Less than approximately 10% of reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.