I put hours into using it, then write my review. Sometimes the time is the first night--I always have at least 8-10 hours on an item--and for others...it takes time to keep using it when I have soooo many other better ones. Those I make a game out of to see what it does I might like!!
I like to use a product at least 10 times or so before writing a review. I know from experience that sometimes, I'll hate a toy at first only to realize that I actually like it a lot once I get the hang of using it. And sometimes I've liked my first impression of toy only to hate it after using it a few times.
I haven't yet had an assigned review, so maybe that would be different.