Lamm LL2 Deluxe....

Stereophile has an in depth review of this component and based on their review, and having it paired with an amplifier with a "normal" input impedance, e.g., higher than 20K ohms, I personally would not hesitate to own this  LL2 for $2500. A comparable quality tube preamp in the used market would demand a higher price.

Yes, most seem to agree that it's a very good pre, and well balanced overall.

Is it the deluxe version?

Rox- glad that worked out for you. When I bought my Lamm gear, all used, I had Vlad go over it. He didn't charge much to replace a few parts on the amps, and updated my line stage- the L2- to the then current spec. They are very nice people- Elina is really terrific at getting stuff done, and if you catch Vlad, he can be charming as hell. All the work is done in a small residential duplex in Deep Brooklyn. Until recently, I lived in NY, so we'd drive stuff over for repair or a check up. (I had Vlad go over my amps before I moved, to avoid the burden of shipping from Texas). 
Good luck with it. I'm sure you'll be pleased, and if not, there is a solid market for Lamm products. 

Price looks pretty fair to me, especially since folks seem to be asking about a thousand more for a 2.1 version.  I'd jump at it if I needed a preamp--I think it would handily beat anything out there at that price..  The dual volume controls are a great way to replace a balance control, too.