Has its flaws but.
Yeah, but it's learning.
First unintentional load test , due to similar trailing unit saying nope (with no alarms) I got one to pull a little over 1800t up Como and Loftus banks and whilst not quickly never seemed to be doing it tough . Came off the bridge powering up at 51 clicks and it settled down to 20-21 km/h and at most showed 500Kn on the load meter . Crested Sutho at 22 through Loftus at 58 and down to 24 over the top . Impressive to me anyway though I think in general use these units could do with higher gearing because they don't show anything like these numbers at higher speeds
BTW on the screens that unit was showing around 32-3400 hp on the grades so they obviously make more power than they can use with big loads at low speeds .