Just ordered, second set of wheels?

Uk - Ordered an o2 out of short delivery time, 0% finance, black with heat pump and tech pack but not keen on the 17" wheels. How do people find the tyres as well? I have been running All Weather tyres for the last 3 years and they have been far better for grip in wet conditions than my original set on my Aygo.

Dealer can get me a quote for a second set but will likely be expensive. Has anyone else looked at replacing the 17" back to 15" on the 02? It might cost but the 215 tyres seem overkill for the car as a whole, and tbh I'm old and 185/65/15 seem large to me lol