2019 300B tubes that are worth the money?

I have to agree with @gsm18439 (Gary).  Rachel at Grant Fidelity has been a very reliable source for  purchasing  the higher end Chinese tubes. She stands behind what she sells. I believe that she now carries the Chinese Linlai brand.

I use the Psvane Replica 101d DHT tubes (Probably 6 or 7 years by now) in my Line stage and they've been durable and dependable.  I hope the same is true for their W.E.Replica 300b.

I use the EML XLS in my 300b SET mono blocks and they are exceptionally robust and reliable. I pretty sure their sonic character is different from the W.E.Replica 300b. Reported life expectancy of the EML XLS is 40,000 hours.  Mine test new after about  6 years of very regular use.
Charles 

Hi Gary,
Did the KR balloon 300b replace your Takatsuki or are they an alternative change of pace pair?
Charles 

Add me to the list of audiophiles warning of reliability concerns with Sophia 300B tubes. Mine failed <3 months in Sophia’s monoblock amps. Their customer service was disappointing. In sonic comparison to my set of vintage WE 300B tubes (1930’s manufacture), the Sophia’s were good but not great. Original WE are a bit thin in the bass, but the midrange is magical with Voxatix speakers, Rhythmic subs,  and Colibri cartridge. Sophia’s bass was stronger but not enough to recommend them with their reliability issues and unique approach to accountability. My amps are one off monblocks built in So. Korea,

I agree, avoid Sophia, also had a bad experience with them.

@argonsteele Thanks for the tip and review of the PSVane WE 300B replicas. I'm going to try a pair; can't go wrong at that price.

I sell a decent number of Sophia tubes.  In that time, I have had one 274B fail.  It was under warranty and replaced within a few days.  The only thing they asked (KR and Emission Labs ask the same) is that the tube be returned so they can test it.  

I have had exactly one tube fail from each of the three companies I mostly sell (KR, Sophia and Emission Labs) and all three replacements occurred quickly and without issue.  

I have not seen Sophia have a higher failure rate than the European counterparts but, I also have never sold any of the tubes that they used to source from TJ Full Music.  They have shifted suppliers and I believe the net result is a much lower failure rate.