Is it only compatible with peg perego brand strollers,or can it be used with other brands as well
It can be used with many other strollers. The bugaboo, uppa baby, BOB, Moutain buggy, graco. You can pretty much buy an adapter for any stroller so a peg perego will fit. I use mine with the bugaboo. Just google search what ever type of stroller you are wanting to see if it has the adapter for peg perego. You can also buy adapters for certain strollers used.
How to release car seat from stroller
How to release car seat from perego stroller