does the Safeseat fit in any strollers besides Graco?

[AdoptChina]

at BRU they told me it only works in Graco strollers (And Id bet the snap and go ones)....but how about with Peregos, Inglesinas etc?
I like the size of this seat since I have big babies

[mom2acrew]

I tried it in a Peg Perego P3 and an Aria and it doesn't lock in but it sets in and seemed secure enough to me.