I have had a few (BAD) roasts that I will lovingly call "learning experiences". Honestly, the learning curve has been more gentle than it was for me with the other roasters I've used. By varying the bean load and playing with profile settings and adjusting times (I only use P1, P2 and P3) I am getting results that are satisfactory (to me), and some roasts have been outstanding IMO (the Misty Valley was amazing).
I've been roasting for about 4 years and it's been a great experience for me. I enjoy learning more about the bean and of course learning what tastes good to me for drip/presspot coffee and espresso. I don't claim to be on a par with the finer professionals out there, but I can honestly say I prefer my own roasts to most that I've tried.
I do not have discriminating tastes when it comes to wine (whine?), but I know what I like and what I don't. So I cannot say if my tastes are well-developed compared to some others....but I absolutely do taste differences distinctly both in espresso and other coffee preparations, even small differences from my own roast variations. This is how I experiment and learn what works best for my tastes.
I very much appreciate that people have different experiences and different opinions. Just as with other topics I give little credibility to strong opinions posted by those with no personal experience, but that is the natuire of online fora. As I say, this is no different for this subject than any other.
Overall, I think this new roaster has some very positive qualities and already it seems to have coaxed many fledgeling roasters into the fold. Will they all make beautiful roasts every time? Hell no. But that's all part of the learning process. I have had a whole lot of "learning experiences" roasting over the years and I expect to have plenty more. It's all part of the path we walk, it's all good.





