I was using this model for siblings. When my second son was born, the first was 13 months old.
I was very happy with this pram. It was easy to push, tackled our town's pavements well - but the same applies to worse terrain. To add to it, everybody was praising it's looks - I had a very colorful one in a limited edition.
It's a very good, sturdy pram. I sold mine after my boys grew up. If I ever needed a sibling or twin pram, I would go for this one again without hesitation.