Hello ( hej!)
I live in Stockholm and I think it is a fab place to bring kids up, I have a 7 month old ds and life is just so much easier here. The parental leave is amazing and you can send your child to state subsidised daycare from the age of 1 for about 100 pounds a month. There are parks everywhere, the bus is free with a pushchair, the summers are glorious, bit the winters are very very very long, the first year I moved here it the first snow came at the end of October and there was snow on and off ( mostly on for months and months) through till may.
I have found embracing winter sports really important, I have learnt to ski and we ho ice skating on the local lake, ds had a sledge last year and we pulled him along behind us, this year we will do the same thing. It gets very dark in the middle of winter, the sun hardly rises into the sky but the homes are so warm and cosy, I never feel cold in Sweden.
The Swedes are hard to get to know, they are fairly closed people but when ( if) you get to know them they are fun and friendly. It really upset me that people didn'tsay hej or smile when I said hej to them whilst out walking, people also push lots and I was never given a seat on public transport by a Swede even though I used it right up to the birth and ny bump was massive with 10 pound re-election
There are loads of English speaking parent meet ups, there is a Facebook group and a meetup group.
With both you and your dp speaking English I would recommend sending your ds to a Swedish speaking daycare, that way he will pick up both languages.
Send me a messaging you have any questions, best of luck with everything! If you would like to meet up for fika ( coffee and cake) when you arrive I am on maternity leave so free lots of the time :)
Best of luck!!