Never heard any reviews but seeing how the Lynskeys basically created the whole Ti revolution when they started Litespeed, I'd have to believe it is a top notch product.
I met a Lynskey rep riding one at a local century last month. It was beautiful; had some kind of blue marble House of Color paint job which was an $800 option. Everything looked first class on the frame; welds, dropouts, brake bridge, etc. Plus, the product knowledge and lack of hype this guy projected impressed me a lot.
As capwater said, if the family that started Litespeed gets back in business to build smaller volume custom frames with their name on it, I'd bet on the quality as well.