I've done it 4X. Each time I say that it my last one. But you know what - each time I see something different and never the same way twice. Bottom time at 135' is 6 min's max. Deep safety stop is required and then get to hang out at 10 feet under the boat for a while searching for macro. Task loading is certainly an experience to have under your belt. Watching newbie's is hilarious and I always wonder why they are allowed that deep with so few dives. EAN of 26 seems to be the preference for Aggressor boats. Liveaboard is the best way to go. The remaining dives that day are far more colorful and fish laden. But you are going down there to see something that very few others get to see in person. And you always have bragging rights when watching Discovery. Most important advice; watch your computer and mind your depth, the NDL and deep stop.