The phrase "buy cheap, buy twice" is never as true as when applied to tools. Good quality tools can make the difference between being able to repair a device, and breaking something even more.
When I recommend a tool, I'm recommending tools that I've used and found to do what the manufacturer claims they do. I look for quality, value for money, and durability.
I don't just review things, I actually use them. Some of the items have been used for a few months, and some for many years.
I also look at consumer reviews for anything that I might have missed -- there's nothing like being able to see what hundreds or even thousands of people think of a tool or gadget.