Recently tried both the original Business Class lounge and the Garden lounge. I liked both. The Garden lounge is newer and harder to get to (it's easy to miss particularly since the entrance elevator area looks like a Louis Vuitton store), which is perhaps why it's less crowded. One oddity: The Garden lounge showers do not have toilets but do have built-in hair dryers. The original business lounge showers have toilets but I had to request a hair dryer be delivered to me....

The Garden lounge supposedly has a gym (or two!), but when I was there it was apparently not accessible (there was a line barrier blocking the entrance).