Friendly city. One of the friendliest in the UK. Great independent businesses outside of the city centre. Very green city - Bute Park is a huge asset, it feels pretty safe to me.
The main con for me is that if you live in the suburbs, public transport can be terrible. One bus route to serve an entire area of population, one bus an hour that sometimes doesn't show up.
Also, not exactly a con, but I've been thinking about how Cardiff could embrace smart technology, and I'm really drawn to the idea of having such smart solar benches in our cityscape. They're made of stainless steel, which means they're durable and low maintenance, perfect for our Bute Park. And they have a solar-powered setup, wireless charging capability, and Wi-Fi connectivity. Yes, I'm all for eco-friendliness and technological advancement.