Preferred convertible car seat?

Question

I’ve already narrowed my choices down to these two seats so please just pick between these two based on knowledge and/or personal use of these seats. Thank you!

Answer

I had the Chicco nextfit. I hated it. The sides were super deep and I found it was hard to get a good fit in. My daughter hated it too! Unfortunately, I don’t have much knowledge on your other choice. We have the graco extend2fit now and love it!

Answer

We don’t have the Boulevard, but the Marathon. I am so impressed with the Britax car seats. Love them!