As a gesture to rental clients, I placed Gaggia Carezza expresso machines in properties we own over the last 10 years, and despite weekly cleaning and quarterly descaling, each and every one was ultimately damaged via misuse.
The current models of Nespresso machines are are inexpensive, and simple to operate. No more reports of exploding portafilters or clogged panarello wands. Keeping the full range of capsules in stock is the only concern these days.