Assembly was fairly straight forward once I collected the proper tools. Socket and ratchet speeds things up. Roller wheel assembly could use a picture and better instructions. I figured it out but took awhile. 
                    
                    The unit looks great. I fired it up once so far. Puts out a lot of heat but a breeze can blow a lot of that away. Not sure if any other design is better. 
                    
                    We bought this as the best of the less expensive models.