I set up a site using this very method a loooooooooooong time ago, reviewed 5 diff. products on a topic.
Here's a twist that simply works: one of the products I reviewed is FREE. Yes, completely free, but it pretty much contains the same things that the other ones do -- or at least that's what I say in the review. Gets, not surprisingly, decent amount of sign ups. And of course it's my own list, just a single-pager set up using optimizepress. Down the line, I will then sell the products that were reviewed using autoresponder.
Making sales, building a list.
What's there not to like in this method? And forfuckssake what are these "will this still work in 2013" posts? Will product reviews work? Well think twice.