Chrono Tries Tube Amps - Do They Make a Difference?

In this video, Chrono shares his experience trying out high-end tube amplifiers for the first time. Amplifiers tested include the excellent Ampsandsound Forge (which was made in collaboration with Headphones.com), and the highly-regarded Feliks Audio Euforia. Were these two amplifiers able to lure Chrono into the world of tubes? Do they offer any advantages over solid state amplifiers?