Sounds great to me, as a Swede I hate being forced to take 4 weeks consecutive vacation. Would love to instead have 2-4 weeks spread out through the year. It's a stressful burden for me as a single person who's life naturally revolves mostly around their job, to suddenly invent a new life for myself for 5 weeks. I just end up bored and restless, wasting time, even if I travel 4 weeks is just too long. 1 week at a time is perfect really
Edit: And you have to take those weeks in the summer as well, you can't take 4 consecutive weeks in fall, winter or spring. So it's really inflexible. If you want to go hunting in fall, and skiing in March, tough luck, in Sweden everyone "needs" to take all their vacation in the summer for some unknown reason.
It’s the same in Finland. I’d hazard a guess that the reason behind it is that without it being forced people would be subtly pressed not to have the vacation.