I love this model so much and I completed it just before I joined Tale of Painters. I wanted a striding pose with lots of movement because dreadnoughts can tend to look static. It's a great kit and with lots of posable options because the knees, hips, shoulders, elbow, waist joints are all separate.
It has a built in weapon within the fist, I opted for a heavy flamer (reminds me of the Iron Man suit from the film).
I added a couple of pieces form the Plastic Grey knights (Shield, and couple of icons) and modelled a slate base with scrub and snow.
It was a lot of fun to build and paint. Highly recommend it to everyone.