I've been using the Peterson VS-S2 Strobo Stomp 2 digital tuner for about a year and have found it to be an effective tuner and is an overall easy to use pedal. It has all sorts of modes for all types of electronic instruments, but I have only used this for guitar and bass guitar, which it works great with. The pedal is extremely sturdy and built very well. There are 1/4 inch connections as well as a battery compartment and a power supply jack. The LED screen is very clean looking and it is very easy to navigate between different modes and is in general easy to use. It has a mute switch so you can tune your instrument on stage and it will mute your signal while you are tuning. In addition to these great features, it has a cool design to it and is small enough that it is very easy to bring around to gigs or on tour. While this is a great tuner, I would say that I prefer the Boss TU-2 Chromatic Tuner because I am more comfortable with it. However, both are great options for both live shows and the recording studio, it just depends what you have more experience with and your overall preference. This pedal is more expensive than the Boss tuner, which is other reason that I like the Boss pedal a bit more. However, this is aimed at professional players looking for a sturdy pedal that will last a long time that is suitable to bring on the road, and the Peterson VS-S2 Strobo Stomp 2 definitely has these characteristics. This tuner is used by a lot of professionals out there and is definitely a great choice if you are looking for an extremely reliable and well built digital tuner. Overall, highly recommended to all players looking for a great tuner.