Cooking on the weber vs. the brinkmann is like night and day.
Not if you know what you're doing.The amount of air allowed through the vents by gravity is so little that it is of little use. If you have experimented and know how to stack and burn briquettes you can do a pretty good job of controlling the temps. If you really want to build a smoker you need not only a couple of vents to direct heat and smoke, but digital fans to go with it.
I've smoked meats for several decades and while a modified Smokey Joe would work fine, so will a hybrid Brinkman. it's just that the Brinkman is a little cheaper and easier to assemble than the smokey Joe, especially if you aren't into metal work.
There are a lot of myths about smoking meat and the TV series doesn't helkp.