Service, delivery and quality of the mattress is undeniable.
Pros:
No intense chemical smell. Just a little foam odour for a coupe of hours.
Strong and efficient edge support.
Great quality materials (and all made in Qc, Canada). The cover is awesome (feel and clean).
Con : The only thing that did not pass for us : Firmness. Don't get me wrong, it's a very good mattress, but you need to be ok with 6.5 on 10 firmness. We tried a lot (in store) before trying this one online) and we really prefer a softer feel. All subjective and we are pretty fussy about it.

Conclusion: Everything should encourage you to buy this mattress. Even though we have not kept it, I really recommend it.