Having had my new model CX-5 for over a month and 1500 miles I am able to report the following. It is significantly quieter and this leads to a much more relaxed drive. The seats are more comfortable with better lumbar support. The active LED headlights are amazing. I really thought I'd be dazzling other drivers but I haven't been flashed once, so probably I'm not. The Bose sound system is excellent IMHO. The lane assist isn't intrusive and does its job very well when set on 'late intervention' but is a bit irritating on 'early intervention'. The blind spot monitor is genuinely useful. The DAB radio works well.
The only real negative is, inevitably, the sat nav. Having to turn your phone into a wi fi hotspot to get live traffic is really irritating. It wouldn't be so bad if it reliably connected but it is really hit and miss, so every time you stop on a long journey you have to faff about getting the wi fi to reconnect—think 5 minutes. Also the live traffic only seems to know about relatively major routes. It completely failed to tell me that the M3 and A3 were both closed for routine maintenance one night, both routes were marked green on the map. Grrrr...