6015i speakerphone

I’m looking for a phone with a very good speakerphone. I’ve chosen 6015i, because it is reported to have good reception, features a speakerphone and last, but not least is cheap. I had 2128, which has great speakerphone, but its earpiece is awful, it makes my ear hurt. So I’d like to know if the 6015i has a good speakerphone, compared to 2128 and can it be used while driving? Thanks