The only thing which I appreciate in Lion is the management of the video (a bit better on my monitor).
The worst thing with Lion is the difficulty to organise App and Utilities folders like you want (I organised these folders by putting the Lion drive in target mode with Snow Leo).
And, the most important for me, Pro Tools HD is unstable in Lion, even with the 10.7.4 version.
So, as a professional sound designer and composer for film and TV, I return to Snow Leo 10.6.8, the most stable and open system for my everyday works.
(and I think Apple are no longer interested in providing systems for professionals).