http://www.wired.com/reviews/2013/04/coffee-grinders/#slideid-100781
It sounds like it hits the right level of fineness and consistency to do the job,
Rancilio also makes some good affordable pro-grade grinders, but look elsewhere before buying one at MSRP. I've read the burrs themselves can have some longevity issues, and while servicing/replacing the actual grinder assembly is a routine event on professional models (the rest of the machine, including motor, are truly pro-grade and are designed to last), it seems opinion says there are better models for around the same MSRP from other companies. There are trade-offs with all of them until you get to the models that actual coffee houses use (unless they are like Starbucks and use the superautomatics), but at that point, the biggest tradeoff is usually the size and the price tag (approaching a grand).
Forever ago I had bought a Rancilio second-hand, and was able to get proper pulls from a decent espresso machine and do so consistently. Very fine and consistent grind.
I'd advise against skimping on the grinder and at least getting something of the quality level in my first link (if that turns out to be good - I'm not sure I trust Wired to perform a trustworthy review on espresso equipment, but the rest of the reviews are in line with coffee geek community opinions and reviews).
If you aren't out to actually get a good cup of espresso, don't bother. It's a big investment all around to get a good tasting 30-second pull with good crema.
I had to put all of it in storage and it's been years since I broke it all out. Damn, I want my espresso again. Between college dorms, living at home, and shared apartments with no counter space, I haven't had the space to keep it. Can't wait until I do.