Is Bioluminescent Orb for niche situations only? Is it worth buying?

[touchtonedialing]

I was thinking of picking one up but I've never used one before or really seen people talk about the bio orb.

Is the main value behind it tricks with blind or is it used mostly for the 200 range to not use javs?

Curious what people use it for and if they would recommend getting one even when they are so expensive.