The Bumbo
I bought a Bumbo when Nicole was a baby and I was desperate for a way to put her down and have her remain happy. She wasn’t happy with the swing, or bouncer, or lying on her back and as it turned out, she wasn’t particularly thrilled with the Bumbo either and I thought that perhaps it was a gimmicky waste of money. She was content enough in it a few times. 
However, Ila is definitely helping me get my money’s worth out of it.