I've bought the vibe ready for bub #4, but have taken it for a couple of outings with my 4.5yo and 19mo in it to test it. And even with their combined weight of about 35kg, it was a BREEZE to use! I LOVE it...

When we were looking at the sports, the brake seemed very "clunky" and difficult. I love the instant brake on the vibe.

Just a note though, I haven't collasped it with the toddler seat on the bottom, but when you collaspe it with the toddler seat on the top it makes the folded pram very long. I don't think it would fit in some cars.. so check that out. I have to take mine off purely for space in our car, but it takes like 2 secs to do so.

I found that when you lay the main sect down flat to let a bub sleep.. it is completely open to you at the back.. so not very "dark" IYKWIM. I just throw a cot blanket over the top to darken it to keep bub asleep.