I have an older Minolta as well as a Pakon F135+. The Pakon gives great images with very little work, and scans a whole roll at a time, fast. The Minolta does up to 6 in one batch, and has better resolution. It takes me nearly an hour to scan a whole roll on the Minolta, and about 6ish minutes on the Pakon.
If I were looking for a higher quality scanner than the Pakon (~6mp files), I think at this point I would *strongly* favor a 1-2 generations old DSLR/mirrorless with a macro lens or slide copier. They are just so much faster and take less fiddling, with resolution and dynamic range that meet or exceed that recorded on the film.
-Greg