I have my genre preferences and usually enjoy them the most, but I'll try anything. I don't like to limit myself because you never know what hidden gem is out there. I've found several authors I now follow by doing this. 99.9% of the time I will finish a story even if I may not be enjoying it. I never know what I might learn even if it's just the realization that it was a colossal waste of time. If I wasn't too wild about a story, I'm still willing to read a second one from the that author just to make sure that it wasn't a one-off situation. I do make sure the story is complete, then check the description and tags so that I know what I'm getting into and, finally, read.
I think Nephylim's comment says it all: