I have both a tandem and a side by side and love both of them for different reasons. My tandem was brought for my oldest two who have a 2 1/2 year age gap between them so needed something pretty big to fit ds1 in. I brought the graco stadium which £150 including rainccover and cocoon for the newborn. It is big and bulky but both seats give lots of space, it's got a big shopping basket and it fits in the house easy enough if they both fall asleep in it. I personally like this one as they are one behind each other and one of them isn't ' hidden underneath' instead.
When I had ds3 I only had a 15 month age gap so needed a double that would fit in my car as my tandem wouldn't. I brought the Joie pink and blue which was again about £150. It pushes like a dream, has a big basket underneath and just squeezes in my front door so I dont have to wake them if we've walked somewhere. The seats are smaller though so I don't think I'll be able to use it for as long as my tandem as ds2 gets older.
When I had ds3 I only had a 15 month age gap so needed a double that would fit in my car as my tandem wouldn't. I brought the Joie pink and blue which was again about £150. It pushes like a dream, has a big basket underneath and just squeezes in my front door so I dont have to wake them if we've walked somewhere. The seats are smaller though so I don't think I'll be able to use it for as long as my tandem as ds2 gets older.