I've also used your strategy of reading the bad reviews on Amazon!
But I found that they simply didn't update their guides nearly often enough to be useful.
Wirecutter's modern twist on CR's formula -- maintaining a frequently updated leaderboard in popular product categories, plus information on deals -- just winds up being more useful to me.
It also seems like Wirecutter has more relevant experts writing their articles. Maybe that's because they're actually better experts; maybe it just seems that way because WC articles begin with the author/authors stating their credentials and experience.
I don't necessarily fault CR but I with the hundreds of models released all slightly similar but different (I hear partly to prevent price-matching across stores) it must be as impossible to review for CR as it is for consumers to keep track of.
https://news.ycombinator.com/item?id=13909365
Typical cartel-like, profit-boosting activity of oligopolies which appliance market seems to be with a handful of companies owning most brands.
It can be a bit behind on the far changing stuff like electronics, and it can be pricey.
But I've never found them lacking in quality and detail.
Recommend the BIFL (buy it for life) community on Reddit.
I have very mixed feelings about that. I have some serious experience there; I moderate a subreddit dedicated to audio hardware in which people often ask for and receive purchasing advice.
So on the plus side, you have some fairly knowledgeable people offering advice.
However, even your average "enthusiast" is pretty lacking. No enthusiast has experience with enough relevant speakers to really give informed recommendations. There are thousands of speakers on the market. I've used... dozens? And owned... half a dozen? I mean, nobody has direct experience with even one percent of what's on the market. We try to supplement that direct experience by staying on top of reviews and things, so we have a sense for what's popular and seems to have garnered a lot of happy owners, but it's still very conjectural.
And speakers are a product category where it is somewhat possible to own multiple products, and there is a semblance of objective measurement possible. So we have it easy.
What if you want to buy a fridge? Or silverware? Or socks? Or blankets? There probably aren't fridge enthusiasts and if there are, it's doubtful they own many fridges each. So, you wind up with users just giving anecdotal stories, tainted with heavy doses of confirmation bias, because of course people want to like the fridge they spent their cash on.
Or, worse, you get the opposite effect: brands that sell lots of volume will appear to have the highest failure rate, even if their failure rate is low. If you knew nothing about cars, or the sales volumes for various brands, combing the internets would give the impression that Corollas fail much more often than Lamborghinis. Because tales of mechanical problems for Corollas probably outnumber those for Lambos by a factor of 1,000:1. (My wife owns a Corolla! It's had a problem or two) Which would seem really damning if you didn't know that Corollas outsell Lambos probably 100,000:1 and in reality are probably an order of magnitude more reliable.
You get this effect with Apple products: any Apple-related forum has countless horror stories of failures from Apple owners. But, Apple products are actually generally reliable compared to the competition. It just so happens that they're the Corolla in this analogy, not the Lambo.
I tend to only look at 1-star reviews and 5-star reviews in passing. The first ones are obviously pissed with the product and that will colour their opinions. The latter are either enthusiasts that will love everything about it or people that heve just received it and/or are still on the honeymoon phase. I think ignoring them outright is as bad as focusing only on them, but I don't pay them too much attention.
I find that focusing on the reviews around the middle (and, of course, the number of those compared to the total number of reviews) usually gives me a better idea of the pros and cons of a product.
1. To find a community of enthusiasts and see what they have to say about products in that space. This works pretty well for products that actually have enthusiasts.
2. Go to Amazon and read a product's bad reviews. The good reviews are nearly useless. But, with bad reviews, you have to weigh the number of bad reviews against the product's popularity. If something has twelve negative reviews, that means very different things for a product that sells 10 units a month versus a product that sells 50K units a month.
3. Read the tiny handful of reliable product recommendation sites. Cool Tools, Wirecutter, annnnnnnd.... I'll let you know when I find another one.