We have a phil and teds explorer and bought the peanut carrycot to sit on the seat, since the dot and navigator came out it's been difficult to find the extras like the doubles kits.
They seem to take a bit of a bashing on mn but it's been great for us.
My family live rurally so something capable of handling country lanes/bridlepaths was a must, we've had it along the South downs way. The uv net has been a godsend too, it's rarely calm enough for a sun parasol here 
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I can fit everything I need for a few days away under the buggy, it's made my journeys from NW to SE a lot easier.
That said, I'd like it less if I had to fold it more often but we walk everywhere/get the train.
It's almost a shame it's lasted so well, I really like the updates they've made with the navigator