The Rivelia is De'Longhi's answer to the bean-switching problem: swappable hoppers let you flip between regular and decaf without dumping grounds or cross-contaminating flavors, all in a compact footprint that fits tighter counters. The side-mounted water tank is smaller than bulkier rivals and refills run more frequent, and cold foam requires buying the Eletta's cold brew container separately (it works, but factor the extra cost). Buy it if you drink both caffeinated and decaf espresso daily and counter space is tight. Skip it if you need cold drinks out of the box or want years of durability reports before committing.
This is the machine cafés buy when they need two different drinks brewing at once without a barista juggling portafilters, and it handles that job with genuinely impressive engineering: dual grinders, dual boilers, 28 programmable recipes, and a build that shrugs off a thousand drinks without breaking stride. The grinder clogs on fine settings with medium or dark roasts, forcing you to vacuum it out every few days or stick to coarser grinds that compromise espresso extraction. Buy it if you need true simultaneous brewing for an office or you find a used unit under $1,000 and don't mind the maintenance rhythm of a commercial workhorse. Skip it if you just want excellent espresso at home without adopting a café's cleaning schedule.