This was our first experience ordering a product from the internet.  Although the mattress arrived five days later than scheduled,  the ordering and tracking process was easy.  Once the packaging was removed, the mattress inflated in less than four hours.  There is an odour but is dissipating by the day.  As for the comfort level, the mattress is more firm than medium.  The soft bamboo cover is a bonus.  So far, the experience with this mattress is more than satisfactory.  Time will tell.