I've been using this model for a few months now, and I'm enjoying it a lot. It claims to be more accurate than the traditional needle-style or LED digital tuners, and I'd have to say that I agree. It definitely feels easier to use than the old school handheld ones that I had before (Korg is a typical manufacturer of those). I've also had better luck with this then with the Boss pedal tuner I have. The display is really easy to read, even though it might not look it at first glance. It also can be set to work with different tunings, such as Drop-D, and can also be set to deal with tempered tunings and custom tunings of your choice. This also features a D.I. out, which I haven't used quite as much since I have other DIs, but it's not a bad one by any means. I wouldn't buy the pedal just for the DI, though, as its a bit pricey. I also never really DI an Electric Guitar, so unless you're running an acoustic through a pickup, using an acoustic electric, or playing bass, the DI is almost never used.
I was surprised at how clear and obvious the screen for the Strobostomp is. Usually playing in the sun makes it impossible to read a tuner but that is not the case with this one. I was also pretty amazed at how it indicates that there's a problem with intonation. It has allowed me to know exactly when to change strings, and it's good to know that there's something wrong with the guitar if it's time to get an intonation adjustment. It is kind of a pain to get used to if you're trying to make custom tunings. The manual is definitely something you will need if you plan on using it in this manner. However, for those who seriously need a lot from a tuner, this is a great purchase. It's pretty pricey, but worth it if you can afford it. In this economy, however, it's tough to justify spending all this money on a tuner; make sure you need it really badly before you buy it. I doubt I would make the same choice again but that's simply because I don't have a job at the moment, and could really use the cash!