It's a very common and versatile word, used in many contexts.
Here are some examples of how it can be used:
* Хороший день (ho-ROH-shee dyen') - Good day
* Хороший человек (ho-ROH-shee che-loh-vek) - Good person
* Хорошая книга (ho-ROH-shaya kni-ga) - Good book
* Хорошая идея (ho-ROH-shaya i-de-ya) - Good idea
* Хорошо (ho-ro-sho) - Good (as an exclamation or agreement)
Remember that Russian grammar has genders, so the ending of the word "хороший" changes depending on the noun it modifies.