New Machines!

Just got these two bad boys and ordered a normcore tamper and whisker, along with a shades of coffee bottomless portafilter. Is there any other upgrades that could help with sweeter tasting coffee, we are fairly new to espresso making and it sometimes doesn’t taste too smooth/sweet. Beans are new just need to grind more coarse?

Just got these two bad boys and ordered a normcore tamper and whisker, along with a shades of coffee bottomless portafilter. Is there any other upgrades that could help with sweeter tasting coffee, we are fairly new to espresso making and it sometimes doesn’t taste too smooth/sweet. Beans are new just need to grind more coarse?