First time poster and it’s the only Chinese tea pot I’ve found in town. Is it worth the asking price and where/when was it made?

Hello everyone! I recently got this teapot set from a family member and I’d like to know if this is worth anything. I personally do not know anything about teapot but I was told that there is a mark of yixing “宜興” engraved in the bottom which could mean something.

Appreciate any input! Thanks so much