  We analyse a long archival XMM-Newton observation of the narrow-line Seyfert
1 galaxy Ton S180, using the latest reflection models to explore the high
quality X-ray spectrum. We find that the iron line is relatively narrow and
sharp, and the soft excess is extremely smooth. We cannot find an acceptable
reflection model that describes both components, and conclude that the soft
excess cannot be produced by relativistic reflection. Fitting the 3-10 keV band
with relativistic reflection to model the iron line strongly prefers low spin
values (< 0.4), with the exact value depending on the model and not well
constrained. We then model the broad- band spectrum with a two-component
Comptonization continuum plus relativistic reflection. This gives a much better
fit than a pure reflection model, which again prefers a low spin value. The
photon index of the reflection component is intermediate between the two
Comptoniza- tion components, suggesting that both illuminate the disk a similar
amount and therefore both contribute to the reflection.
