Valco tri twin or bumbleride duo - any experiences

Having looked into twin Prams which might be suitable for Percy's needs and a newborn, Just wondering if anyone has any experience of the bumbleride duo or the valco twin.
I'm considering these (or my duet). At the moment erring towards the valco; it seems a better off road pram, but wondered if anyone has any experiences?

Not heard of tgem, but looks fab! Bet they're not pocket change...

They would both work out slightly cheaper than the mountain buggy @ems101
Both have really positive reviews in the states/Australia but wondered if anyone had any experience here.

Oh that's good! And it could be extended for a third little one if you have another little surprise...

Love the colours (clearly an important feature) of the bumble ride. I don't know anything about either. They both look quite similar to the nipper 360 which has to be the best pushchair I've ever pushed. Have you considered/looked at one of those? The only thing it doesn't do it rear face Seats can fit a good sized toddler, recline to flat and brilliant for other road.