Will be more informative than House floor impeachment. The impeachment material is entirely repetetive of things said multiple times already.
Supposedly, Pres and VP have a right to appear, so could be some sand in the gearbox, but I doubt that will happen.
Horowitz opening is the same as what he gave the last time, so this is repetetive so far too. What changes with time is that the questions ccan be better informed, as inconsistencies in Horowitz logic and limits on his investigation (he looked at nothing before July 31, 2016) enter the calculus.
Sen. Ron Johnson said that he will have a series of questions for Horowitz about timeline of Page/Strok text messages.