I had the same experience switching from an Olympus OM-10 (with split image) to an OM-1 (microprism circle), I prefer the microprism circle by far, I seem to be able to focus much more quickly than when I used to spend time making sure the split image was exactly aligned in the OM-10.
Admittedly if I wanted to I could buy a split image screen for the OM-1 because it has interchangeable screens, but I don't think I will.