I know Ava is loads younger than Izzy, but we got her one (the M&P Classic) for at MILs
She 'played' it in for a bit (no toys though just her nunu) and so she felt ok in it, then I left and when she got tired MIL popped her in and although she cried a few time she just settled her (as usual) and she went off and had an hours kip - which is really good cos she NEVER sleeps outside home normally!