I've been given seats by my employers when needed. For years, I had car seats from my own child.

As far as ease of use and weight, I prefer the Maxi Cosi seats. Britax seats are humongous. Ease of installation is important if she will be taking it out and putting it back on a regular basis.

I think it is easier for her to have her own seat.

I would get her a separate seat. I hate Britax but I'd get her one with the click tight as its the easiest to install.

Our child will be transitioning out of the infant car seat soon.

Do you typically buy a convertible car seat for your nanny to use? Any recommendations on car seats easy to put in/take out? Our nanny has a family of her own (youngest uses a booster seat), and I wouldn't want to inconvenience her with a cumbersome seat.

Thanks!