Don’t be led by performance specs alone- your great overachieving wonder box may end up sounding nothing more than harsh.
Although it’s practically impossible these days- try to hear as much as you can in person.
Try to avoid being the Guinea Pig when it comes to new products. Give a little time for the buzz to wear off- that’s usually when people’s honest opinions come out.
Pay attention to what products are being sold and how often- this can be a good indicator of how satisfied people actually were based on its age.