From the very start, this was a helpful VSTi utility. After trying the trial version, I immediately purchased it. This tuner obviously tunes guitars and basses, yet it is very helpful to make sure that sample sets being designed for samplers (ie. HALion) are in tune. The large display is great.
Only improvements I could think of: An option to control the thickness of the needle or a bright light when in-tune. Anything to improve utilizing it from a distance.
Dox: It's very simple to use, documentation is not needed. Yet it would be nice to have a bit of documentation. (ie, calibration control, capabilities, best practices)
Sound, Presets: Doesn't have them... doesn't need them.