The TS mini delivers the classic tube screamer sound, with only a slightly different flavour from his larger brothers. Generally not noticeable, but here and there you feel the sound falls a bit flat in the high mids, especially when stacked with other ODs.
For most use cases however, it's a perfect pedal if you're building a smaller pedalboard, but still want the classic sound of a tube screamer.
Build quality and feel are also absolutely top notch, no issues with any of the knobs.
Only thing to keep in mind is that the smaller 2 knobs are impossible to read and adjust based on their position, so if you're someone that likes to change level and tone settings during a set, consider getting a bigger TS.