I was thrilled to have the Level 2 Mods when i bought the new Unico 20 years ago.
I first saw Sam Tellig's uber enthusiastic standard unit review in Stereophile and then the 6moons mods review. The final and significant upgrade to meet my audio tastes was some pricey tube rolling with great advice from Upscale Audio and I am still thrilled.
I listen to mainly classic UK rock, pop, reggae, new age, folk and electronic music. What can I say? For my tastes, for example, my UK first press of Pink Floyd's "Dark Side Of The Moon" has tremendous soundstage, clarity, bass and detail through the moded Unico.
If you ever need servicing/repairs Parts Connexion in Canada who did my Level 2 Mods still have the same guy Glenn there to really take care of you. Highly recommended!