Learn Spanish (Latin America): El precio es demasiado alto; sin embargo, es recomendable. - The price is too high; however, it is recommendable.

Just like "however" in English, sin embargo is a formal connector used to contrast two independent ideas. When it introduces a new full clause in the same sentence, Spanish punctuation rules typically require a semicolon (or a period) before it and a comma after it.

Could I just use pero (but) instead of sin embargo here?

Yes, you could say ...demasiado alto, pero es recomendable. The difference is mostly in tone and emphasis. Sin embargo is a bit more formal and adds a stronger sense of contrast, much like choosing "however" instead of "but" in English.

If we were talking about a feminine noun, like a house (la casa), would demasiado change to demasiada?

In this specific sentence structure, no! Here, demasiado is acting as an adverb meaning "too" or "excessively" because it describes the adjective alto. Adverbs never change their gender or number, so you would say la casa es demasiado alta. You only change the ending to match gender and number when it describes a noun, like "too many houses" (demasiadas casas).

Prices often go up and down. Why use es (from ser) instead of está (from estar) for the price?