My phase 1 ZS didnt have aircon, i think thats the main perk.
You get a black dash and cards etc opposed to grey, heated front screen and A/C and some slightly better thought out electronics on the engine inlet so your less likely to get idle problems, not that they are a massive deal.

There are other touches but thats the main swing of the ph1/ph2 differences i think.

Car looks very good! GLWS.