I switched to ForkLift.
In some ways it is better (I like the single side bar a little more once I got used to it). The bad news is that it is definitely slower and it puts operations in a cue. So if I start a large copy, then try to do a small one with little files on another drive, those little files won't copy until the big operation is finished. Also, it doesn't have the same level of access that Finder does, so you sometimes have to return to Finder to install something.
Yeah, I'm bummed that TotalFinder can't be implemented with SIP on too.