well, i like PL' s work, though imo they haven't released a single album, maybe except Draconian Times maybe, which is a complete good album. Sol has some great tunes, no celebration is a killer song. In contrast you have such weak songs like Isolate or perfect mask.
Nick's voice live is not really good like i and others said before, though on the records it's good, but not outstanding. Mehdi is right, Lee has a way better voice, when you hear them live you will soon notice it.
And about the lyrics: i think they have some good ones, but only partly. They are never as heavy as Anathema.
Anyway i like them.