we have 2 of them plus an ahr maxi rider for DS#1 - they are fab. Ifeel all the kids are so safe in them. the only downside is that they are larger than most others but that is because they are safer than most others. Even if you plan on having 3 i would still go for it - we swapped to a bigger car because we wouldn't compromise on safety.
all the best with your bubtobe
x