This speaker is a little more "hi-fi" than I expected. It has quite a bit more high frequency response than a Greenback and has brightened up an old EF86 amp nicely. I had planned to pair it with a Vintage 30 in a 2 x 12 but it's lower sensitivity means it isn't a perfect match. At 95dB it gets overpowered by the V30 (100dB I think). Still, it does add some highs to the cab.
Another nice feature of this speaker is its light weight. At around 1.83kg it is less than half the weight of a V30. If you paired it with a darker, similar powered/ weight speaker in a 2 x 12 combo you could potentially reduce the weight by about 4-5kg and slightly reduce the volume too.
I haven't compared this to a vintage Jensen because I don't have one, but I'm happy with this one. Excellent price, light weight, good build quality, well packaged. And a good tone that would work with most amps in my opinion - as long as you're looking for a bright sound.