Hi Mark,
We have a 5m on demo here on Sunny Coast. I've had 1.5 sessions on it and my friend has had 3-4. Short answer is that he's about 90% decided to purchase one instead of Soul 6m. I'm about 70% committed so far, need to test mid to high range response but have thoroughly tested mid to low range and very impressed. I would be moving off Peaks which is a huge call but holding off to see what the P5 is like in January. But more than likely I'll buy a Koala early next year as well.
Kite looks great in sky (great colours), looks high aspect, flies very well with fast steering, depowers nicely, not like a peak but better than Soul or Nova which are the 2 other small twin skin foil kites I've flown. I was very comfortable on it in gusty wind. Also comfortable looping multiple times in low wind to get out of water, and also looping while on the foil to power up more, it doesn't yank you off, power is controllable and well behaved.
I have made it fall out of sky by foiling at it in a lull. Reverse launched straight away with no issues. My friend had it invert and was not able to relaunch, had a swim in. This is one negative mark from 3-4 overall very very impressive sessions. We are both fairly involved flyers and fling it around. However this invert happened with bar tuned badly, with very very long rear lines. Possibly that influenced it, we have added 20cm to centres and it's tuned better.
I would not purchase the bar personally, I would spend more and get a more premium bar because I like click-in, metal V, PU centre, etc. It ticks the boxes for a cheapish bar though with nice lines.
Hope that helps.