I have the Epson 600 with the Better Scanning glass and I am very happy with them. I do not use the Epson frames, I just lay the negatives on the glass and cover them with the Better Scanning glass.
You have to use the "professional" mode and must put all the options off. The software to adapt the histogram is wonderful. There is a densitometer that is very useful.
When the scan is made, the picture should be finished in Photoshop. A little sharpening is enough to sharpen the grain of the film.
Leica M3, Summicron 50mm f/2 rigid, Ilford HP5.