As a manufacturer or audio components (we don't offer speakers for sale), we get to hear and pair speakers with our equipment. We also have to adjust to the speaker as you cannot just get the best sound out of a speaker just because the equipment is reference quality. While high efficient speakers don't require that much power, paring the right amp surely makes a big difference.
Reviews are only part of the answer. They should be sued for someone to get a flavor of what a speaker can sound like and to narrow down a choice or preference. IMO you just cannot listen to a you tube video and pick out a speaker that will work in your system.
We have a listening room in Northern New Jersey which we are now using to help people understand how a speaker will perform with various amplifiers, etc.
Happy Listening.