I've used one for the last couple of years and found them excellent, if a little cold in winter without an underblanket. I don't suspect you'll have much of a problem out in the tropics unless you have a night time downpour.
I do think they are rather expensive, when compared to the DD or groupbuy hammocks. I'm not entirely convinced I would buy another now others are available, but at the time I bought mine, they were the only ones available that were up to the tasks I wanted it to cope with. Even then I had to purchase it from the US, they weren't available in the UK.