Sunfire Classic Vacuum Tube Preamplifier: Yes/No?

Greetings!

I am thinking of adding another tubed preamp to my system, one that is slightly warm, sweet, and romantic, but one that does not rob the music of its detail, transparency, and impact.

Has anyone heard the Sunfire Classic Vacuum Tube Preamp? I heard it five years ago and was favorably impressed. It was warm and romantic with a huge sound stage. Was I mistaken? Is the Sunfire preamp to be taken seriously?

My other preamps include the Proceed AVP, Conrad-Johnson PV-14LS, and Kylne System 7.

Thanks for your help.

Artar1