I think I was the only vehicle on it. Looks like it just opened a day or so ago. It is complete up to the Chapala-Guadalajara road at the west end which is where I entered it. 88 peso toll towing a trailer. It got confusing when it joined with 15D. Right turn to Mexico city on 15D no problem, but I went straight ahead on 80 towards Lagos de Moreno. A km or so on, I encountered 2 concrete barriers staggered across the lanes aways apart. I just managed to do an S-turn through with my 25 trailer and the road ended a km on where I had to go across some gravel to get onto Hwy 80. I wanted 80D but was just past that. I managed to go 2 km on, do a turn and then get back onto 80D heading north.
I was not able to tell how to get on the new bypass off of 15D westbound, but there must be a way as the toll booths were open in both directions.