I have been using a Yoder YS640 for close to a year, and in my opinion, there is only one con, and that is the paint. It hasn't been that big of a problem for me, but I have seen a lot of complaints about it, and for the price, they should really resolve the issue. In my case, the only paint issues have been on the front of the cooker. I have several spots where paint has peeled off. In my case, I believe it is from pulling the top shelf out too far, and letting grease and sauce drip down the front. Yoder claims they use their paint, so that it is easy to fix, and that is true. They provided me with the paint, to fix mine. I haven't gotten around to it, but it shouldn't take no time to sand it down, and re paint the small area. I should mention, that I keep mine on a covered deck, and keep a cover over it, when not in use. Other issues, that I have heard people talk about, are pellet consumption, and wheel issues on the standard cart. I have not had the pellet consumption issue, that many talk about. I don't know how much of that is because I have the thermal jacket, and how much of it is that Yoder has fixed their software. I just know that I use about 1.5 to 2 lbs an hour depending on cooking temps. I have the comp cart, so I can't speak to the wheel issues. Also, to me if you get the Yoder, I would get the 2 piece diffuser plate. It should be standard issue. It makes accessing the firepot, and direct grilling much easier.
As far as operation, it has been pretty much flawless. It is a very good smoker, and gets hot enough for grilling. If I could change one thing, I wish the bottom grate pulled out, for easier access. The one issue I had with tthe cooker in many, many cooks, is one time the igniter did not light the pellets, and I had to clean the fire pot out, and start over. It was my fault. You have to unplug the cooker in between uses, so that it resets itself. The owners manual tells you this, but one time I didn't, and I had a problem.
I have no first hand experience with Mak, but I believe it to be a very good cooker. My final decision was between Mak and Yoder. I personally liked the looks of the Yoder better. I liked the heavier steel of the Yoder. I think the 1 thing that separates Mak from Yoder is the the Programmable controller. If that is something that you would use, to me it would be a plus. I just really don't like the idea of having an unattended fire going, while I sleep, so it didn't appeal to me. I have been there, and it is a tough decision. Luckily I don't think there is a wrong choice. Just go with the one you like the most.
I know I would like to hear the pros and cons of the Yoder. Thanks!