Izzo Alex Duetto IV Plus vs LUCCA M58 Sunto Espresso Machine with Flow Control
Same class, different tax brackets.
About US$493 apart — the split below is what the gap buys.

Izzo
US$2,799–2,950
The Duetto IV Plus is a well-built, rebuildable dual-boiler machine from Naples that competes directly with the ECM Synchronika and Profitec Pro 700 while typically undercutting both on stre…
Full record & live prices →
LUCCA
Strong consensusUS$3,295–3,440
The M58 Sunto with Flow Control is the highest-expression version of Clive's flagship: it brings genuine dual-boiler thermal stability, flow profiling, and a genuinely quiet rotary pump to a…
Full record & live prices →The split
Where they actually differ
On 10 of 11 measures these two tie. The single row below is the entire argument.
Alex Duetto IV Plus
M58 Sunto Espresso Machine with Flow Control
Ready when you are
M58 Sunto Espresso Machine with Flow Control leads, decisively
~20 min· ~12 min
The price
Alex Duetto IV Plus costs less, clearly
US$2,799–2,950· US$3,295–3,440
weakerstronger
The counter’s vote
Looks barely figure in either machine’s record — the counter can sit this one out.
Alex Duetto IV Plus: Utilitarian industrial aesthetic (72-pound stainless steel weight is feature, not liability); no award citations or kitchen-approval talk in record—design neutral to slightly dated in a market moving…
M58 Sunto Espresso Machine with Flow Control: Compact industrial form trades countertop charisma for brass/stainless workbench aesthetic; not polarizing but unremarkable—functional beauty, rarely cited as a buying driver.
Only the M58 Sunto Espresso Machine with Flow Control: flow control.
Where they tie: milk & steam · shot ceiling · back-to-back drinks · reliability record · forgiving to learn on — don’t let a spec sheet invent a difference.
So — which one?
Take the Alex Duetto IV Plus if —
- The difference stays in your pocket — or goes into beans
Take the M58 Sunto Espresso Machine with Flow Control if —
- Patience is not your virtue at 6 a.m.
- You want more dials, not fewer
The measured differences here are small; the price gap is not. Take the Alex Duetto IV Plus and put the difference into fresh, roast-dated beans — they move the cup more than this split will.
Known weak points
Alex Duetto IV Plus
Long heat-up cycle via thermosiphon (reported ~1 hour full transfer to group) is workflow constraint rather than failure, but limits convenience perception; no widespread failure modes documented in available owner record.
For the row-by-row readers
The whole sheet, side by side
Matching rows fade back — the ink is where they differ.
Alex Duetto IV Plus
M58 Sunto Espresso Machine with Flow Control
Type
Dual boiler
Dual boiler
Heat-up time
~20 min
~12 min
Steam power
4/5
4/5
Brew + steam at once
Yes
Yes
Guest recovery
4/5
4.5/5
Shot quality ceiling
4/5
4.5/5
PID temperature control
Yes
Yes
Milk system
Manual steam wand
Manual steam wand
Removable brew group
No
No
Hot-water tap
Yes
Yes
Cup clearance
14.6 cm
0 cm
Workflow demand
4/5
4/5
Maintenance
3/5
3/5
Noise
2/5
2/5
Build longevity
5/5
4.5/5
Dimensions
36 × 44 × 42 cm
—
Flow control
—
Yes
One owner each
“The machine takes about 1-hour to fully transfer its heat from the brew boiler to the E61 group via a thermosiphon circuit of relatively small diameter pipes.”
“"5 years later and I see no reason to upgrade. The beauty of the machine equals the performance."”
Wrong match-up? Change one side → — any two on file compare.
Still torn?
This page weighs them against each other. The finder weighs them against your mornings.
Two minutes of questions — milk, noise, budget, space — scored across everything on file. It’s honest when the answer is neither of these.
Take the two-minute finder →