Yup, they're great. Lots of good info on the Smokeslinger FB group if you're into that. It's quite active and Dustin, the owner of Smokeslinger, is usually posting and cooking all week long. He does a number of livestreams. Frank Cox is the marketing guy and the one behind the new Liberty 94 offset. I've cooked on this and it's a GREAT offset for a backyard cook. Super even temps across the grate, the Flowtuner baffle they're using allows it to heat really evenly.
I'd strongly suggest the Smokeslinger group on FB to ask more questions and watch stored up livestreams and see the group documenting their cooks.
It's a great company as well, and they work hard to try to make sure people are taken care of well. As you can guess, I'm good friends with Frank, and have been with him down to Dustin's facility outside Canton, TX, seen the setup, hung out, cooked, drank beer and I am a fan. Love the whole Smokeslinger concept, though I don't have the space on my patio to put one.
Great folks.