We stayed DLH concierge in May. We usually stay at DGC concierge but the DLH renovation looked great, our son wanted to try out the new pool and I liked that the concierge lounge had a view of the fireworks.
It was okay but we will be returning to the DGC for my birthday in a few weeks. There was no advance planning offered, no separate check-in, the food offerings were not as good (though the low carb offerings at breakfast were greatly appreciated!), we had to chase down someone every time to get a beer or glass of wine. And the lounge was incredibly crowded for the fireworks - unless you get there super early, you can't see anything...
We missed the entrance to DCA and the pool was just okay. Our son actually said he preferred DGC's...
But the cast members were extremely nice and the rooms are lovely. Do not miss Trader Sam's for tiki cocktails. It is a blast!!