Jen-
I owned the Nordic mattress on the Euro slat foundation for 6 years, and for me, it was a mistake of a purchase. However, we had the old Nordic, which only had 1" of latex, on top of 2" of "soft" coils (not the microcoils back then) and then the firm coils. I did not know anything about mattresses back then, and had I realized the Nordic had only 1" of latex, I probably wouldn't have gotten it for the price.
I was looking for a firm mattress, and the Nordic felt okay in the store, but the Nordic ended up being too firm at home, and even with trying all the adjustments ESW (European Sleep Works) recommended, I never got it to work for me. Every time I called to ask for advice within the "trial" period, all they told me would be to change the slat positions and try that for a few weeks- and before I knew it, the trial period was over. After that, they wanted to charge me for any changes. Our springs also sagged after 6 years. We probably could have gotten something under warranty, but I didn't like the mattress enough to try. We eventually put two toppers on top to make the Nordic bearable to sleep on.
I know a lot of people really have had a good experience with ESW (European Sleep Works), and they do use good materials, and I'm sure my experience was the exception. I still think highly of them, I just would do things differently another time around if I were to purchase another mattress there. I had no mattress knowledge the last time we were there and bought a mattress.
This is not to say that the Nordic wouldn't be right for you, but I wanted to write and give you another option. Have you tried going to the Natural Mattress store? There is one in San Rafael and one in San Francisco. The owner, Steve, in San Rafael, is very knowledgeable about mattresses, and he knows ESW mattresses well and can make comparisons for you. He is very low key, I've been in there 3 times over the last year, each time spent about an hour- and he pretty much left me alone to try beds, unless I had questions or asked for recommendations. They do not sell the adjustable slat foundations- which appeals to me, because I never got the adjustable slat foundation that ESW sells to work for me. If I adjusted the slats to my comfort level, I had to sleep in exactly the same position in the mattress to conform to how the slats were adjusted, and when I moved the adjusters on the slats out further to make the mattress softer, I felt a "dip" in the mattress. I felt "trapped" in that one spot in the mattress, the middle of the mattress was higher and firmer due to a beam that runs down the middle of the foundation, so I couldn't sleep in the middle of the mattress, which I like to sleep all over the mattress when my husband travels. Anyway, I wish I had gotten a "regular" wood foundation like the Natural Mattress store sells instead of the adjustable slat foundation.
If you haven't been to the Natural Mattress store, you might want to give them a try, they have a website if you google natural mattress store, San Rafael, and explain their mattresses there. I really wanted my next mattress purchase to be with them, but I've come to discover through lots of trials on latex, including a super soft 14 ILD latex topper, that my muscles just don't like the "pushback" of latex. My body is much happier on polyfoam, so we recently ordered a Tuft and Needle mattress, and I'm pretty happy on it.
Have you tried other types of mattresses, memory foam or polyfoam? As much as I want to sleep on a "natural" durable latex surface, my body feels a "pushback" from latex and isn't happy on latex- some of the mattresses in the Natural Mattress store felt wonderful and worked for me the first 10 minutes, then I stared to have problems with longer "naps". I am so appreciative that Steve at the Natural Mattress store let me spend as much time as I needed on each mattress. I have fibromyalgia and spine issues (including a couple of bulging disks in my neck and lumbar region, that cause radiating pain down my arm and sciatica), and sadly, latex just doesn't work for me.