I've used GSI, Brunton, and my iron skillet, and all-around nothing compares. I purchased this after my GSI set charred itself to death on my last trip.
-Heats quickly, evenly, and efficiently
-The larger pot is not non-stick coated: therefore nothing to worry about scratching off
-The large pot is wide enough to reach in and flip trailcakes etc.
-Cleans like a dream, even after burning a few things (my fault, not the pot), a simple scrub restored it to like-new
-The mugs actually fit your hand (not like the bowl shaped things GSI tries to pass off as mugs in their comparable dualist set)
-The plate/bowl holds a lot of food
-Doesn't come with a stuff sack
-The raised center on the bottom of both pots not only makes it difficult to stir food evenly but also prevents you from using it on super-compact stoves, including my trusty pocket rocket, much to my chagrin. I ended up having to buy a new stove just because of that. Talked to customer service at Cascade Designs (MSR's parent) and they said that they're currently redesigning the pots to fix this. I look forward to that!