I've a Lang 60 myself. You've made a good choice. Used mine since Thanksgiving. Love it. So far, I've pulled it about 1800 miles with no problems. At least none that were the trailer's fault. The trailer light plug fell out of the truck and I drug it about 300 miles before I found it. Had to stop and replace it. Also, the lights don't seem to be water tight. Blew out a couple of lightbulbs pulling in the rain. Minor annoyances that have nothing to do with smoking.
Using it is awesome. I've run about 80 pounds of meat through it. 3 turkeys, 2 hams, 8 chickens, and 6 pork butts (not all at one time). The best thing about it is no hot spots. No infrared heat searing the meat requiring me to worry with and constantly move the meat. I just load it up and keep her closed. Next time I run it, I may try basting or mopping, but found the results to be good without doing that.
As I said, I love this smoker. Things that would make me love it more ;)
1. I don't know why they made the second rack so small. I'm considering making three larger racks to go in like the bottom grills do. If anyone knows why Ben designed the second rack this way, please let us know.
2. I want to make a charcoal basket for it and try the Minion method. Not that I don't like stick burning. But it's something I want to try.
3. I'd like the warmer box to be big enough to accomodate a full sized food service (steam table) tray. And it would be nice if the warmer box had more shelves. Not a problem for me because mine doesn't have the warmer box, so when I add it, I will have it made how I want it.
For home cooking the 60 is a great size. I think (hope) it's a good size for entry level catering. Because I'm going to try it out for that. If I do well at it, I eventually want to go with a twin 84.