So we got this grill, after a few weeks I sold my gas grill.  These pellet grills are great.  The Zgrill has worked just fine, and comes with a cover.  Make sure you clean the ash out of the bottom as required.  I did not on an overnight brisket and had to move it to the oven while I waited for the grill to cool down so I could clean the ash and restart.  If you get the ER2 message on the display it means a probe error and you might not have been on the right setting when you turned it on.  Their Customer Service was quick and sent me this message regarding the ER2 message:If the ER2 disappears after these steps, there is nothing to worry about as this is just a default setting by the manufacturer.To resolve the ER2 error on your first initiation of the grill.1. Plug it in2. Dial should be on SMOKE by default3. Flip the switch and the display shows "ER2"4. Turn the dial back to SHUT DOWN CYCLE and turn it back to SMOKE setting5. Error code should be gone and the grill starts working