I have visited the museum on numerous occasions- usually taking guests for a day visit.
It gives u a great insight into the history of the area (wars, coal mining, cannabilism). A wonderful tribute to Mahatma Gandhi is also on display.
The Smith cottage is well preserved.
I was disappoited on my last visit that the sound effects at the mining exhibit was not working.
Additionally, the staff could be a bit more enthuisiastic and perhaps offer a guided tour (for a tip or a small fee).