Eh. It was slightly fun up until about level 30ish. Maybe it wouldn't be so bad with the Ala Mhigan earrings or whatever other EXP boost items you can have up until 50, but with only the Brand New Ring helping me out, I felt things starting to chug along pretty abruptly.
Additionally, by that level range, I had already gotten pretty much every spell you can get on your own. Between Mighty Guard and 1000 Needles, getting the Mor Dhona and North Thanalan spells weren't too much trouble, and it's even possible to solo Ifrit for your first primal spell. But after that, you're basically just slogging through levels just to hit 50 and unlock the rest.

That said, I'm not really so sure I want the job to change all that much. Because, in my eyes, that exact combo is what needs the most attention, but it's what makes the early/mid levels somewhat satisfying. Mighty Guard for defense, 1000 Needles to get around the damage reduction.