You really would think that Robert Plant has a twin brother - fantastic vocals ! The rest of the band were'nt too shoddy either - excellent lead guitar and drums. I guess the bassist always goes a bit unnoticed by comparison, but no complaints there either.
The good thing about tribute bands is that they unashamedly reel out all the favourites that everyone wants to hear. Pretty close to the recorded sound that we're all used to, with just enough variation to let you know that this was a live perfomance by some very capable musicians.
Just a couple of minor gripes - in the second half, they ruined Whole Lotta Love with some self indulgent crap that we could've done without and they kept stopping to milk the crowd for applause, which is OK once or twice, but it got really tedious in the end.