You have to remember, the L2 was a very early first generation glass cockpit helicopter and coupler.
Compared to anything else I’d flown before, it was without doubt the best thing since sliced bread.
Treated with respect the 3 axis AP function was more than adequate
Like any other it did have vices which could jump up and bite.
The vertical bar indication for IAS was difficult and non intuitive
Thankfully with time progress has been made with AP flight envelope protection