Oh, I always post on these threads, extolling the virtues of my lovely Kenwood - known in my house as Ken, natch.
Like the other posters, I didn't get the one with the timer - you REALLY don't need a timer, OR the cooking one! I have the Ken Chef Titanium, currently £325 on Amazon. I lurked for a while, deciding between Ken and the KA and chose Ken, buying when the price was low. Lower than current.
I really do love it. I use it for baking, mostly - so dough, cake-mixing, egg white-whisking etc. The flexi-beater on Ken makes sure that all the mixture is mixed in from the sides of the bowl. The KA has no flexi beater!
The blender that it comes with is glass, and great. The processor is fab too. In fact I don't have another processor.
You can buy a million and one attachments, although you can also for the KA. I have the ice cream maker, which I also love.
As to aesthetics - I think my Ken is a Beat! Yes, the KA is pretty but Ken has style and is slightly less hairdresserey conformist!