Guys calm down. ToneX just sounds as as good or bad as everything else. I've learned that trying to get others to see things the way you do is always wrong. Especially when there's no right and wrong. Any modern unit will sound great if you know exactly what you're doing. You can make the Kemper sound bad with just a flick of the wrist. The focus on one's own abilities in terms of listening and playing is the most important thing. Then every unit sounds good. And accept that there will always be guitarists who will hate your tone while others will love it.
I wholeheartedly dissagree, there are parameters of measurable quality when talking about good or bad sounding amps. You can argue however you like about what you like or not, and most often than not if you like it, there are one or more of those parameters influencing your decisions. But your opinion is yours and just yours, and not measurable. There are horrible sounding modern hardware out there, in all price bracketes. I can measure the dynicamic response from the amp to the input, and that to me is a characteristic that makes kemper really appealing as it feels different to most digital modelles, while also can check the frequency response from the output, and make A/B testing against a real amp, and find truly possitive comparable results, which imply that the kemper has made a quality reproduction of the sound it intents to capture. You cant say the same from mustang amps, or the spark amp, or a headrush pedalboard. Not even from the quad cortex to some extent. I havent tested the tone x, but I can run the same tests and compare. And leaving behind my taste, we can know if tone x actually achieves what it tries, or not. And thus, if it sounds as good or not as what it tries to replicate.