The concept is great and lacking on Walnut, a decent priced lounge catering to the just out of college crowd. Similar to but larger than Soba and closer to the number of bars on Walnut, Alto lounge is a great lounge if you are looking for a pure lounge.
The staff, at times, can be kind of cold and don't think you'll be able to have any sort of conversation because of the way too loud music. While it isn't great, it is a nice lounge for the area without having to travel too far.