aa777888 - how are you going to keep it in balance if you don't touch the controls - 2-axis is pitch and roll only.
It also means that although the pitch channel will hold your height in Alt mode, power will decide your speed so if you want to change it you will have to make a collective input.
Equally, trying to use it on an approach will mean constantly adjusting the collective as the AP only has the ability to use pitch changes to fly a vertical profile.
I think the SAS element is very attractive for a robbie but don't get too excited by the upper modes promised, it won't be a full hands-off experience.
Oh and I wouldn't rely on that IIMC wings level facility, especially if the speed gets low.