We have a Meridian AHR (the first model) that was used for both of my children, and a SNS Maxirider 2 for my oldest child.

This will sound like I work for them, - I promise I dont!!

I love them both, and their after sales service is also very good.
I had an incident where the head foam was broken, and the tether strap broke. I had no issue either with their CSR over the phone or on site when I took it to be repaired, and I was given a full report on the repairs that were made - they even found an additional thing that required fixing and this was done as well. All of this was under warranty so free of charge, and they fully QC everything before you get it back, it really was very thorough

I have to say having dealt with other childrends brands, Britax are among the easiest to deal with.