I vote yes, (though I may be in the minority) , I used one last year for dd then aged 5mo and it was great, though she did need a blanket on top of her inside it too.
The best thing is that only this morning I tried her in it for this year, now aged 15mo and it is still a brilliant fit, so if you do a fair bit of camping you will get load s of use.
Oh and they are beyond cute, and sell well on e-bay second hand, I say go for it.