I am a huge fan.
I have used it for all 3 of my babies: it was honestly the best bit of baby equiment we ever had!
I have reviewed it here:
Amby Hammock
The only downside (and it is a tiny issue,
LOL!) is that they never look as cute as a made up cot. But I was always MORE than willing to trade in looks for sleep!
I would TOTALLY recommend.
My 3 children stayed in the hammock until at least 9 months (Charlie). Lexie only moved to a cot at 12 months.