Spent two nights assemblying the 3650. The operators manual left a lot to be desired! Cryptic instructions at best. Am I crazy or are the bolts metric? 7/16 too small 1/2 too large, had to use adjustable wrench (knuckle buster). Out of box, saw performed great! Little if any vibration. Ripped 3/4 MDF panels perfectly. Would like a little stiffer platform for the weight of saw. It doesn't look like Rigid is going to provide the additional leg panels.
Overall, I am pleased compared to using a twenty year old Craftsman contractor's saw for the last five years.