I saw this last night and have to say I thoroughly enjoyed it. I did not see the Signature production, but I did see the last West Side Story revival on Broadway and was not a fan. I thought last night's show improved a lot on the last revival. There was a thrilling energy in this production that I thought the last Broadway revival sorely lacked.
A note about the space. Knockdown is a warehouse so far out on the L train that walking over (or taking the bus) you actually cross over into Queens! Definitely and adventure to get out to, but an easy one. Its a beautiful space, but it isn't very conducive to theater. The bleacher seats should be market partial view as they were set back a bit from the floor seats and pillars all around made it difficult to see everything. Still, I doubt much theater will be staged here in the future. It seems more suited for art installations.
Once I adjusted though I really enjoyed this production. Think BIG. The cast and choir were simply massive and the sound they produced was amazing. The dance scenes were very impressive with the sheer number of people onstage.
I thought the cast was quite strong. Skylar Astin was a huge surprise for me. He has a fantastic voice and carried the show well. Morgan Hernandez was a find and in great voice. Manny Stark was excellent as Riff and I really enjoyed Bianca Marroquin as Anita.
Musically it was really wonderful. When they used the choir, it was truly stunning and the 40 piece orchestra sounded wonderful. This is a highlight for me of things I have seen this year and I wish it was running longer so more people could see it.