DLH concierage is 125 extra a night plus taxes. We just came back from DLH and had concierage w/ a prem view. I really enjoyed it and appreciated the convenience. My DH isn't sure he would do it again.
The lounge is open from 6:30 to 10 pm nightly. They have a continental bfast, snacks out throughout the day... a hot appetizer and wine and beer from 5-7 and desserts after 8... and of course a fridge that is always stocked with Milk,Coke, Diet Coke, Apple Juice, Sprite and water.
In the evenings they open up the windows and you have a view of the freworks and they even pipe in the music which is nice. Just make sure yu show up at least 30 minutes early or you will not get a seat... also ask which wiondows are open so you get the best view. The actual windows are tinted and if you are not at an opening you can't see very well.
Make sure you take treats back to your room. Especially if you are doing early entry. The lounge isn't open early enough to enjoy during EE.... the CMs encourage and allow you to take drinks and snacks to your room and to the park. And don't hesitate to ask for something if you don't see it. One of my DS loves chocolate milk and they don't keep it in the fridge.... but they got it for us every night.
I hope you enjoy your visit!!