I've seen various different models - Dash, Explorer (I think that was the name) etc.

What's the difference with them all? Is one better than another?

Don't know much about the dash

As far as I remember,
The e3 was the original then the classic, neither of these have recline on the 2nd seat
The sport v1 and v2 do recline on second seat

Explorer is the latest model and has a better sun canopy, harness has changed as well as break and the foot-well is covered in plastic.

I'm sure some one will be on with more info

I looked at the Explorer and vibe.

The explorer was so much nicer to push and the handlebar seemed comfier to hold somehow.

The only drawback is the double seat doesn't recline, but I don't use mine for long walks, it is just to get the kids from the car into school and back.

Mind you, now the little one is nearly 2 she walks it, so I have just bought a zapp to be able to put the car seat on to the frame, so I can fit the pushchair and 2 dogs in the boot to do a dog walk.