you know, the moffi is gorgeous, deffo. BUT, I think it's too high up. what i liked best about the amby was that i could lie in my bed and have my hand in the amby. not to mention the fact that when dd got more active i liked the fact that if she ever fell out she'd not have far to travel. (she didn't, by the way).
if i was going to order the moffi i'd want to know how high it is off the ground compared to the ambi (it may look worse than it actually is, we don't know if there's a baby in the photo). the springs look much the same to my untutored eye, so if it's the same height then it will presumably work the same way. i personally had no difficulties getting the baby in an out of the amby once i realised that you need to lead with your elbow a bit.
however, by the same token anyone with a bad back might like the moffi better.