If you're asking what it is I like about BeeWeaver...
They're probably the most easily available chemical free/resistant queens that I can find.
The service is very good.
Daniel Weaver not only coordinated the HoneyBee Genome Consortium, the genome sequence itself came from BeeWeaver queens.
I have also benefitted as a result of his work on the Honeybee Genome Consortium.
Furthermore, since they're open mated queens, I also have access to a number of papers describing the genetics of the feral population in Texas.
In short, I have more information available to me about BeeWeaver's genetics than I do for any other queen producer on the planet.
Organic or not.
Finally, I like the way they're working out so far.
That's what I like about them.