It took about 1 hour to assemble. It is very well built. Much sturdier than my old treger. Ran the update using my wife's Samsung 10s, it would not work on my 5s. I set the temp for 600 and started the unit. It said it was 70 degrees outside temp was 60 with a slight breeze. It started smoking went to 75 and then just sat there. So I did a shut down which takes 15 min. Restarted the unit and it started climbing and went to 540 quickly then slowed way down, went to 570 and staid for about 10 minutes then jumped to 600 and saido it reached its temp. I was using treger hickory pellets. The ex6 gets very hot on the front.