I know you cancelled your order but maybe this will help for when you are looking again.
I love my OKJ Highland Smoker. I especially love I found it on a winter clearance at Walmart for $150.00. After a few Mods it works great and turns out some amazing BBQ. I agree with what SmokinAl said above, it is the pit master, not the pit. Not that I am a pitmaster or expert by any means, I'm still learning on every smoke, but there are guys out there who build smokers out of old dishwashers and refrigerators and turn out some amazing results. Remember where BBQ started, poor people with nothing, smoking cuts of meat that nobody else wanted to eat, on whatever they could piece together to do it.
As far as Mods on mine, I moved the smoke stack down about 6" to just below the grate. Used fire rope (wood stove gasket) on all the firebox seals, put lava lock gasket on the cooking chamber, and added a stainless steel heat plate that holds a water pan at the outlet of the fire box. It maintains a pretty even temp across the fire box now. Fortunately I work at a company that has a metal shop and a welder.
I will say that smoke management at lower temps can be a bit tricky, but once you get the hang of it works great. I’m going to post though and see if anyone has any tips.