Car seat advice please-has anyone used joie steadi?

[Vivs18]

Hi,
Please help a first time mom out...
Can anyone tell me how the joie steadi was for a newborn? And then how good was it for a bigger kid? In terms of fit and comfort? Any issues with the head support as in other joie models i have reviewed?

I saw a lot of posts just comparing steadi and stages but i want to find out specifically how is it to use the steadi in terms of comfort and fit for a child of various ages as well as ease of use for parents?
Thanks in advance for your help!!

I can't help with the newborn side of things, but we have it for our 16 month old in my parents car and I was impressed with the quality of the seat and with all the inserts in it it looked like it would be pretty cosy and supportive for a newborn.