I have a Bubba Keg, not the Big Steel. There are a few differences between the two but basically the same.
Anyway, I am new to the smoking world and actually looked at the ceramic grills. I decided against them because of the cost, the cracking and most of the accessories you have to buy.
I've had the KEG for about a month now and have made cooks on each every weekend and a couple of times during the week. Everything I have cooked, from smoking to grilling has turned out amazing. Ribs, chicken, butts and ABT's are what I have been practing with. All have been tender and juice. I have rarely cooked using charcoal or lump so there was a learning curve.
The KEG retains heat very well on minimum fuel as I am still on my first bag of lump. The longest smoke I did was about 6 hrs when I smoked a butt. The first weekend I had it, I did an all day cook, off and on for 11 hrs. This was all done with about 4-5 handfuls of lump. When I shut it down at 8 pm, the temps were dropping but was still at 225.
I never cooked on a WSM so I am partial to the KEG. If you choose to buy the KEG, I'm confident you will be satisfied. It all depends on what type of cooking you do. The KEG can do low an slow and also high heat so it is pretty versatile. And you can attach it to your vehicles receiver hitch for easy transporting.
Hope this helps.
I am completely satisfied and it was the best $449 I spent. I would do it again in a heart beat.