I'm very excited about this platform and where it is going. I absolutely love the clean design that they have chosen and can see that they have put a lot of work into making the workflows as easy as possible in things like Campaign and Ad creation.
I'd like to take off one star because I can see that there are still a few things missing compared to working in the Ad Manager and some parts of the workflows can be improved.
I've started posting these back to them in the livechat (nice to see that we can do this).

I think another area for improvement would be the text shown on different screens, boxes, etc which could be improved with more detail and adapted - for example when you want to edit an existing draft advert it jumps directly to the "new" advert workflow.

But all this is just part of the journey and I'm certain that Markopolo is going to become a market leader in this niche.