We’ve been putting together vacuum cleaner ratings for over 8 years and we decided to take all that data and put it to some use. We have gathered price and ratings data from 177 vacuum cleaner reviews. This includes over 137,000 consumer ratings. These have been put into several interesting charts (created in late April, 2016)
What can we draw from these charts? Well, we don’t want to make any hard conclusions here as our data is not exhaustive, but clearly a combination of a high rating and a low cost is good. For the most part the charts speak for themselves.
You will notice the chart above is variance. We added this because we thought it might be insightful. We are not mathematicians so I hope we got this right – we believe this chart will show you how closely grouped together ratings are for each brand. The lower the number the more closely grouped together they are. Why does this matter? Well consider the following two charts of ratings:
We can see that Hoover ratings vary greatly while Shark ratings do not. So these charts indicate you will likely have a better chance of getting a Shark vacuum that is close to its average rating than a Hoover vacuum. So a good combination here is a low variance combined with a high rating (a low variance with a low rating just means there is a good chance the vacuum you buy will also have a low rating).
Now, just to throw a little twist into things, when looking at the cost and ratings charts above you might say something like “I’m looking for a canister vacuum and I see Miele and Dyson ratings are similar but Dysons are less expensive – so maybe I will buy a Dyson canister vacuum”. Consider the chart below. The data suggest that Dyson makes a more highly rated upright while Miele makes a more highly rated canister. (We did not do an upright/canister ratings breakdown for other brands).
It is worth remembering that while all of this data and these charts are interesting and hopefully useful, the information is meant to be for discussion purposes and it cannot really be guaranteed in any way.