There are a few roasting forums I follow on facebook. Usually they are very helpful and there is no negativity but things blew up recently on one of them. It's not worth getting into any details, but I did have a realization:
A lot of people start out roasting on popcorn poppers and similar types of equipment which are relatively easy to roast on, right? By no means am I taking away anything from anyone, and I know for a fact the quality of the roast can be very good.
When people decide to step up their roasting game, many look to and get the Behmor (exactly what I did as well, coming from a Whirlypop). The Behmor has some simple auto settings, but to really get a good roast from this type of roaster (a roaster which that holds a lot of heat within it) you have got to be fiddling around with power settings at various stages to really bring the most out of the roaster.
What I have noticed is a lot of people come from machines or methods which just plug in and have 100% power the whole time and get decent or good coffee, then they get a Behmor and think you can do the same thing or follow one of the presets to get better quality coffee. It doesn't really work like that (just like it wouldn't work like that if you roasted on a Diedrich). Sure, Behmor comes with some simple pre-programming so you can get roasted coffee out of it by letting it run the Auto course, but that's not going to give you a huge upgrade from whatever roaster you came from before.
Ultimately what I'm saying is, I've noticed people are funny. They think they can upgrade and things should be simple, and that since the roaster cost 3x+ what their previous roaster cost, the coffee should be just as much better. But what I think is missing is the fact that you can have ANY roaster out there, but if you don't understand how to roast coffee, the product is simply going to be sub-par. Plus it takes more than 10 roasts to determine if a machine allows for a good roast. Practice practice practice.