Yes! I really enjoyed it but it's expensive. A fun trip is to take the overnight ferry from Stockholm to Helsinki, especially in the summer when it's light even at night. It's quite cheap. Helsinki is great, it's such a seasidey chilled out place, loads of fab shops & bars etc, and less expensive than Stockholm. And then you can also take another overnight ferry from Helsinki to Tallinn, another cute Baltic city, and MUCH cheaper than Stockholm, Helsinki or Copenhagen. I don't recommend taking a ferry from Tallinn to Helsinki tho, because it's full of very drunk people who have been to Estonia to get cheaper booze. Do it the other way around when everyone is still sober
And in case anyone is wondering, yes it was me who started off asking for solo travel tips - even tho I've travelled a lot, and actually done the travel part alone a lot, I've never spent more than one night alone anywhere so that's why this thread has proven so useful.