Learn Romanian: Internetul nu este bun acolo. - The internet is not good there.

In Romanian, the word for the attaches to the end of the noun instead of coming before it as a separate word. Because internet ends in a consonant, it takes the ending -ul to mean the internet (Internetul).

Why is the word order nu este instead of este nu?

To make a sentence negative in Romanian, you almost always put the negative word nu directly in front of the verb. So is not simply translates to nu este.

Would the word bun change if we were talking about a different noun?

Yes. Adjectives in Romanian must match the gender of the noun they describe. Because Internetul is a neuter noun, it behaves like a masculine noun in the singular, so we use the default form bun. If we were describing a feminine noun like the coffee (cafeaua), we would use the feminine form bună.