I purchased a pair of Genalex Gold Lion reissued (New Sensor) EL84 tubes from Jim McShane recently and have about 75 hours on them in my Decware SE84CS EX Mod amplifier. The tubes sound great - very clean sounding, extended treble and bass, project a 3 dimensional soundstage, and vocals are well to die for.
I previously had some cryo'd Russian military SV83 tubes in my amp and while good, the treble was strident and sound was two dimensional.
I can't speak to how these tubes will hold up, but my initial impressions are very positive. Jim carefully matches these tubes, packages and ships them quickly. He charges $59.95/pair plus shipping which ran about $7. If your looking for a new pair of EL84 tubes and don't want to pay NOS prices, I encourage you to check out these reissues.
P.S. I have no affiliation with Jim McShane, just wanted to pass on my positive experience in purchasing tubes from him.