I don't have much experience with auto bed leveling other then our work printer which is hit an miss as well. Robo3d so it's not very adjustable and also just has a plastics frame so it doesn't have the greatest foundation to start with. Seems like from what I have read and seen its not worth it for me to add it to my printer.
I use a glass bed with Aquanet and level with a piece of paper until it's pretty tight in all 4 corners when the bed is at 50*. My first layer I go at least .20 and do 110% or more extrusion. I havent had a failed print in months. I relevel mayben once every 10 prints just in case.