Nothing against Breville as they have gotten a lot better, but still are an appliance company. I have seen pics of them internally and not impressive for the price point. Most aren't easily fixed mainly due to lack of parts to be found based on what owners say.
The Classic is a good solid home machine. I currently have a Silvia and it likely will be my last machine. Cost a fair amount more than the Classic, but the build quality is definitely more robust. I have had a KA Pro Line, which is a Classic x2, so I can make accurate comparisons between the two. Silvia has a reputation for being finicky, but I appreciate that. It is very hands-on compared to more docile home machines, but the performance/build quality is there and can match any machine that I've ever owned/used.
Yeah the MDF has steps between settings, but don't read too much into that. Stepless can be nice, but not the do all-end all feature you just have to have for great espresso. I currently use a stepped Rocky grinder and dial in 2-3 different blends on any given day. With the Rocky I never have to go up/down more than 1 click. Granted they are closer than the steps on the MDF, but likely not that much difference. Some grinders have bins you can grind into, some have dosers, which I happen to like using. Dosers are misunderstood by many and can actually be quite efficient/less messy/wasteful than other types of delivery systems.