Anyone tried these Atlantis RBA's?

[Vapaneezer Scrooge]

Got a Black Boro tank which appears to include an Atlantis bridge, so looking on FT I spotted these crazy priced RBA's

I've only got an Exocet and standard RBA so thinking at the silly price of £7.69 for 5 are they worth a punt?

https://www.fasttech.com/products/3856300

I have a Vape Shell on order with MTL adaptors but I like pissing around with builds and these look good for DTL.