Ask for and give opinions

Carla - Hey, Júlia, look at this.
Júlia - What?
Carla - This sony ericsson mobile phone. What do you think of it?
Júlia - Not much, why?
Carla - Don't you like it? I think it's very useful.
Júlia - Well, it's OK, I suppose. But what about this iphone? It's very beautiful and modern.
Carla - Yes, It's OK. I think it's a good idea. I like this color.
Júlia - I like this color too, but I prefer black.
Carla - Ah, it's OK. Thanks you for help me.