I use the reviews as a guide too...

and i always put reviews on everything i buy because i know its appreciated by future buyers and also the vendor - AFTER i download the product and HAVE USED it.. lol.

if theres no reviews then:

1. the buyer/s didnt bother leaving one
   2.the product is not that great that the buyer was awestruck into giving a rave review.

and mind you i am a merchant and i certainly appreciated being given reviews on my products... 

:-)