I have had the Atom 75 as my first "real" grinder for 3 years. I make about 6 shots of espresso per day with it. If you want to slide the grinder on your countertops, many here have posted on various flat items to put under the grinder, allowing for easy sliding action. Ideally there should be

When it explodes is it overheating or overfilling? (Or... Is the pump running in the moment before the boiler explodes?)

Where is the water going? Is it overfilling the boiler? If so, check and clean the probe. Is it going over the OPV and back to reservoir? If so, the first guess should be a blocked "Boiler Fill Valve" preventing the boiler from filling to the level of the probe, thus the pump runs whenever the machine

I'm mainly a light/Nordic roast drinker, and I easily over roast my beans (or under-develop and get grassiness). I'm following Rob Hoos recipe, "Rob Hoos Ikawa blog post, very informative" The peak inlet temperature is 228 C, whereas light roast I often read that the peak temperature "should" be around 195-205 C. Sure, I dont know if they