What's been your experience with New Chinese 6SN7 tube options?

Thanks all.

@jaymark Jaymark that is high praise!  You also have very nice preamps!

As a follow-up, I just received a pair of Linlai E-6SN7s.  Right out of the box (oh, they come in a beautiful box) they sound really good.  I'm very curious to see if they break in. They sound particularly smooth and warm with just a right amount of air on top new.  

These tubes could be my new favorite and make me abandon NOS.  Thank you everyone!

Running the Linlai 6SN7 in my Aric Audio preamp. They match or better many of the NOS tubes I have tried.  They are my "go to" tube for the Aric.

I've now also tried PSVANE's 6sn7 BE (blue globes).  These are somewhere near their middle of the range of tubes by price and offering.  They sound pretty darn good.  A good quality inexpensive (relatively) option.