Santosha Go the Amby go the Amby!!
We love it. It took a bit of working out and emails to Trish ( thanks Trish!) but it's brilliant. If DD wakes in the night I can simply push the side of the hammock and it will often rock her back to sleep. She usually settles herself to sleep in it by bouncing herself. We have also taken it away with us and it was easy for DP to set up in minutes.
The base of the frame will also slide under our bed, making more space in the bedroom.
It's worth buying or borrowing the Amby sheets cause nothing else we used fitted properly.