First off, I would recommend going over any of the seams with a zipper right when you receive the tent. One of the side vent panels in mine had a seam that had been folded over and the stitching was only holding the mesh vent panel to the tent body. I didn't see this within Backcountry's return period so I had to go through Marmot's warranty program. Good news is that it was easy to set up, they paid shipping both ways, and their warranty site shows you the work they are doing. I had it back in my hands less than three weeks after I dropped it off at FedEx. The initial setup was slow via email (a few days in between) but I chose that method so I could include pictures from the get go.
As for the tent, I've had no problems at all. This is being used as a comfy tent and won't see much abuse. Plenty of room for a queen size air mattress (which fits through the door inflated), moto gear bags, and everything the dog wants to bring along. The tent poles don't seem flimsy at all but I can see them bending if they are handled from the very end (think what happens when you extend a tape measure too far). This thing is almost 7ft tall in the center and has a 10x10ft footprint, the poles are extremely long. I use the 'halo' pole to tie off a clothesline to and there was no concern for stability.
Picture below is the Halo 6 (no rain fly) next to my old Marmot Titan 3P (with rain fly). This thing is massive!