The best with the right amp!
So these are obviously expensive and I can easily see someone thinking they are overrated if they spend the forty some dollars times however many they need only to put them in the wrong amp. I have these in my Marshall HW 1959slp, my Marshall TSL100, my ampeg svt3 pro and my orange OR15 head and they sound ridiculously amazing! As good as any nos tube I have tried at much higher prices. I have yet to have one go bad or crash out early and the beautiful organic overdrive these produce is second to none. In my Marshall JCM 900, my Mesa rectifier, my blues jr and my Blackstar HT-5 I absolutely thought they were seriously overrated and well overpriced. The key is fitting these to the right amp. They are definitely not great for that hi octane modern metal vibe in my opinion. One of the biggest surprises was how amazing they sounded in my orange OR15 head. I swear it took that little amp into the vintage 70s Orange tonality and everyone that hears this amp now comes over to ask what year it is. Then they see the OR15 and say, "how come yours sounds so much better than the ones I have tried?!" All in all these are worth every penny but contact the guys here at the tube store and make sure they are potentially a good fit for the tone you are looking for and the amp you plan on using them in if they aren't recommended in your amps retune kit. Well worth it!