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iRobot Roomba 866

iRobot Roomba 866
alaScore 89

30 reviews

Sep, 2017

alaTest has collected and analyzed 30 reviews of iRobot Roomba 866. The average rating for this product is 4.6/5, compared to an average rating of 4.1/5 for other Vacuums for all reviews. Reviewers really like the reliability. The size also gets good reviews, whereas there are some less positive opinions about the design. Reviews are divided on the price.

usability, size, reliability


We analyzed user and expert ratings, product age and more factors. Compared to other Vacuums the iRobot Roomba 866 is awarded an overall alaScore™ of 89/100 = Very good quality.

Review analysis

(Based on 30 reviews)

Expert Reviews  

User Reviews  

Showing 3 review(s)

Expert Reviews User Reviews


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Showing 1 - 3 of 3 Show Reviews: in English | in other languages (27)

Consumer review by: 19561958 (



This wonderful Roomba isn't bothered at all by cat hair from our shorthaired cats. I used to have a 500 Series Roomba, and I'd have to clean the cat hair ends of the brushes TWICE in every room. This new 866 Roomba doesn't have any issues with cat...

Sep, 2017

Consumer review by: Steve's manager (

Replaced my trusty 530 - no regrets


I have owned a 530 for about 8 years and used it as the daily cleaner in our house all that time. I have replaced 2 batteries and a brush-head unit but whenever I looked at replacing him I was put off by the price and the fact that he was still...

Nov, 2016

Consumer review by: MB (



I just love him,so obedient and hard work ing .I find myself chatting to him..Really easy to use,runs all over then docks himself to MB then just press the button when charged and of he goes again,best investment ever thank you

Apr, 2016

Product Specifications

Cleans routinely, so you don't have to. 500 Series robots offer the latest innovations from iRobot with unprecedented efficiency, coverage, and cleaning performance.