Hi Mrs Dee,
I also currently have a Juke (1.6 Ascentia), and have gone for a Mokka that is going to be delivered on Monday.
When I test drove the Mokka (1.6 petrol) I was very impressed by not only the drive itself, but by the overall comfort and it felt like a lot bigger car inside than the Juke. Also my kids hate the Juke for some reason and always felt ill when travelling in it (probably my driving), but they were with me on the test drive and loved the Mokka - so there must be something in it.
In the end I went for the 1.7 diesal as I do a 88 mile round trip everyday to and from work which is mainly M25, so I wanted something that would give me more than the 40mpg of the Juke (I'm hoping for a least 60 mpg in the Mokka).
I suggest you go for a test drive - you will be impressed.