I have had the grill since Saturday, I really like it. I wanted to get the Summit Charcoal but I balked at the price, this is great compromise.
I have cooked a whole, spatchcocked chicken and some shrimp & broccoli for stir fry. I did a test run first by filling the charcoal ring with KBB, I took out about 12 briquettes and lit them. I put them in the center of the lit charcoal, let it burn for about 5 minutes and then put the diffuser on and closed the lid. It stabilized out at about 230 with out messing with the vents at all. I haven't tried any long cooks with smoking temps yet but I am excited to see how long it can go. The charcoal ring holds just a little more than a full chimney so there is room for a few chunks of wood too.
The hinge is really stout and balances the lid great!
Here's what I really found amazing. After the test with the ring and diffuser, I spread the charcoal out and opened the vents wide. After a few minutes the temp was over 600! I could never get my older kettle above 475, even with lump. I think that the extra area created by the P-vents creates more airflow.