I guess my answer would be "it depends".
If I could go back to the Paleolithic and take the contents of my house and shed, I'd go.
My half-ass backyard garden and farmstand skills would make me the world's greatest agriculture expert.
I'd know more about the world and the universe than any human being living.
I'd be the richest man alive!
Dropped in the same place with just the clothes on my back - I'd be dead within a week.
Sidebar: one interesting thing to remember about travel into the historical past is that standards of personal hygiene have varied pretty widely. You probably would not be able to sit in the same room with a bunch of 15th century Frenchmen without throwing up from the combined odor of BO, human excrement-stained clothing, and perfumes (the last only if around the upper classes). And their food quality standards would take some getting used to, also. Also, have fun with that whole "no toilet paper" thing.
It would be interesting to travel into the future to see if the same was true going forward. Imagine traveling into the future and everyone thinks your personal hygiene, dietary habits, dental health, etc. are all so bad that you're the most disgusting thing they've ever seen. You might also be considered impossibly ugly, if future people have control of the genome and can look any way they want.