Blackbriar is one of my favourite bands and I've attended many of their shows. If you have any interest in symphonic metal, gothic themes, and/or female fronted metal you should definitely go see them.
Blackbriar has a unique sound, thanks in large part to their vocalist Zora whose voice is an interesting mix of power and a haunting sound. This is a perfect fit for the lyrics which generally concern eerie themes, like fairy/folk tales, fantasy, or romance with a dark twist.
The band is fairly heavy with three guitarists and solid drums, but also melodic with live keyboards, backing orchestration, and of course Zora's excellent vocals.
Last but not least, the band clearly loves what they do and cares about its fans. Come and see for yourself!