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

Running Linlai 6SN7 tubes in my Supratek preamp.  This tube runs circles around the stock tube.  Also put this tube in my Black Ice hybrid preamp.  The Linlai is a stellar tube.

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.