Hi Miriam,
I think you made a good quality/value choice and if you did some careful testing and the mattress is also a good “match” for you in terms of PPP then I think you did well … and congratulations on your new mattress 
It would depend on the other risk factors involved. There is more about this in post #10 here. I would lean towards a slat construction that used good quality wood that had little to no flex and narrow gaps unless there was a compelling reason to do otherwise.
I hope you have the chance to share your feedback once you’ve had the chance to sleep on it for a bit.
Phoenix