I echo other submitted reviews and implore travellers to set aside an hour to meander through Sacromonte. It's a mere fifteen to twenty minutes from Plaza Nuevo, and its simple charm and stillness is a nice respite from the commotion below.
That said the mesuem is something of a mystery. It's billed as a local cultural museum, and I admit I expected to learn more about the origins of Flamenco and the history of the Granada gypsies. Instead, I found more of an educational exhibit that focused a third on gypsy and Flamenco history. The remaining two-thirds described flora, fauna and even other countries with temples? The exhibits are informative, but the overall curating is needs to weave the exhibits into a better overall story. Other examples are the exhibits on basketweaving and metalworking. They discuss them in general terms but didn't go on to inform the reader why these were important to local gypsy life. While it's a cute I do not believe it's worth the 5 euro entrance fee. Also, those with mobility or heath issues be warned. It's a little bit of a hike uphill with many steps to get here.
To conclude I probably would not have stopped here had it not been in Sacromonte. Definitely come for the walk and the gorgeous views of the Sierra Nevada mountains and Al-Hambra, but don't be too disappointed if you miss the museum.