Both are single boilers at $1,395. The Solo has no steam wand and is built for espresso only. The Tempo steams milk and includes a manual flow control paddle and programmable pre-infusion. If you make milk drinks, buy the Tempo.

The A53 Mini V2 at $2,595 is the base machine with a reservoir. The A53 Direct Plumb at $2,995 is the same machine connected to a water line instead, with no reservoir. The A53 Pro at $3,495 adds a rotary pump, a larger 2.5L steam boiler, adjustable steam pressure, and the ability to switch between plumbed and reservoir.

Only if you have a water line under the counter. It has no reservoir, so without plumbing there is no way to fill it. If you want the option of both, the A53 Pro is the one that switches between them.

Mostly for noise and plumbing. A rotary pump is noticeably quieter and can connect to a water line; the M58 Sunto and A53 Pro have one. Vibratory pumps are louder but perfectly capable, and they are what the A53 Mini and the entry machines use.

They are designed to a specification and built in Italy by established manufacturers. La Spaziale builds the A53 family; Quick Mill builds the M58 Sunto in Milan and the Solo. Both have been making commercial equipment for decades.

If you drink light roasts or enjoy dialing in, yes. It lets you shape pressure across the shot instead of holding nine bar throughout. If you want to press a button and get consistent espresso, skip it and spend the money on your grinder.

Whichever machine you choose, the grinder matters more than the step up to the next model. If you are deciding between a bigger LUCCA and a better grinder, take the grinder — it changes the cup more. Call us and we will suggest a pairing for your budget.