Hi Katrin,
I just wrote you a rather long post, which my computer appears to have eaten...
In summary, I love my mylo, particularly that it's easy to manoeuvre (e.g. in shops) but also works well in the park / on fairly rough tracks. Not so good for sand though! I also like the folding mechanism and the carry cot which is quite large and we have used it as a travel cot several times (with a different mattress).
Only niggle is the brake sometimes sticks on and requires a couple of goes to release.
We have only used the carry cot so far as DD is 14 weeks.
I also like the fact it is relatively high compared to a lot of other prams so DD is nearer me and further away from the exhaust pipes of cars.
Whether or not it's worth it...it's a similar price to bugaboo, icandy etc and when we compared it to those, we preferred the mylo. However, our second choice was a britax b-smart, which would have been much better value for money, but we just loved the mylo more.
They do seem to be very rare though, which could mean there's a major flaw that we haven't spotted yet...
Hope this helps a bit.