I have a Banish 30. I think Silencer Central ropes in a lot of hunters with free tax stamps deals advertised through partners like On-X. Or convinces folks that they need a user serviceable can for cleaning. It seems like they sell a lot of Banish 30s to people that are new to suppressors. There have been a lot of mixed customer support experience testimonials for Silencer Central on here and other forums.
It's an alright, but not spectacular can, in it's 9 inch configuration. It's not that effective in the 7 inch configuration. It isn't a great hunting can. The Banish 30 has a proprietary thread pitch. Down the road, if you decide you want something like a Plan B style or rearden mount on all your guns then it won't be compatible with the Banish 30 unless Silencer Central starts making those type of mounts.
At $1000, the Banish 30 isn't a good value for what it is. There are many better value options.
I have a Banish 30 from Silencer Central, and a Diligent Defense Enticer S-Ti that I bought from Capitol Armory. I prefer the Enticer S-Ti but still use both on different guns.
I haven't seen a bad testimonial on Capitol Armory. I had a really good experience with them, as well.