Wow, this tuner is da bomb. I've been using one since they first were available, and just can't think of anything to be picky about. Definitely worth the price.
Ran out of room listing _pros_, above. Here's what wouldn't fit:
A great choice for an amp without a dedicated tuner output. You can choose (with an internal switch) whether turning the tuner on mutes the output, or the signal always passes through. Set it up so it mutes on tuning, and put it in front of the amp's input.
Excellent battery life, as long as you remember to unplug the guitar cord when you're done playing.
Strobe display is large, and easy to read. It's bright enough to use outdoors on a sunny day.
No trouble at all, reading the B string.
Sonic Research Turbo Tuner ST-300
Full Size Version AMAZINGLY fast. Extremely reliable and accurate. Absolutely no competition. Bright LED display makes comfortable reading in any