Good box for the price, but with caveats
The PreSonus is rugged, easy to use, has good sounding pre-amps and is really great for beginners, which is the target market for this price range. If, however, you feel there's any chance some day you may want to expand a bit (i.e., you're thinking, "I'll get the cheap model first and if I like recording, then I'll buy something better"), then I recommend you just go ahead and jump to a higher level right now. You ARE going to like recording, friend, and you will likely get frustrated with this box if you start getting serious.
If you take that advice, you'll want to check out something in FireWire most likely, and it will be a Focusrite Saffire model, or maybe the TC Electronics Impact Twin or whatever.
The reason I say you will want to eventually upgrade if you get more serious is that the AudioBox, being USB and limited to 48Khz, has some latency issues regardless of the power of your machine, and it also has (as some other reviewers have mentioned) a SMOKING HOT SIGNAL coming out the back end. This will add noise to your recordings if there is any noise in your signal path (e.g. room noise in your mic, hum in your guitar line, etc.) and will lead to early clipping of just about anything you plug into it. Think of it like turning up the pre-gain on a guitar amp really high. Now no matter what you do to your post-volume knob, you're still going to have some buzz in there and you have less room to turn things up before the signal distorts. That's what my experience was with the Audiobox. The pre-amps didn't sound bad on their own, but the signal coming out of the Audiobox and into my DAW (even with the gain on 0) was so hot that I had to really struggle to use any standalone pre-amp in front of the Audiobox at all -- the signal would just clip too fast and too often.
I owned this unit for about a year, though, before I finally called it quits and upgraded to something in the $300-500 range. Knowing what I do now, I would have started up in that range and saved the initial outlay of cash for the Audiobox. But if you are REALLY sure you're never going to upgrade, then you could do a whole lot worse than this box as your interface. It also comes with a free version of Studio One Artist (though you can, as I write this, download a free version of Studio One from the PreSonus website). The free version is pretty limited, but it convinced me to make Studio One Pro my permanent DAW and that has not changed to this day.