I am right now tasting my first-ever fermentation-controlled homebrew, a Cal Common from a recipe called McSteamy. I'm having a major "whoa" moment. I've brewed this recipe before and it was pleasant, but this batch is... oh, mmmmm. Mmmmm. Like... me, I brewed this?!
My other best beers were a stretch where I was brewing Denny's RyePA, and despite lack of temp control it was really yummy, and my stouts. I also have a batch of Janet's Brown Ale (pre-ferm-control) that came out nice.I still brew horrible Belgians, and I've brewed other beers I would rather forget. For the next several years my brewing time is hugely limited, so I may keep going back to the recipes I know work. Redoing everything with fermentation control would be a good move, methinks.