Clear, transparent and pristine. The overdrive it produces is cool if you got a "high headroom" tube preamp or a very clean channel, but realistically you buy a Klone for the trebly treble boost with raw volume.
Also the newer TC "matchbox" size is appreciated, the tank pedals are great but the pedalboard was mighty heavy after a while, so kudos for size reduction.
The Fat switch is ...meh? If you play strats with single coils it might be worth it but humbuckers and Fat enabled is mudtown territory, good if you like some grungey "lol my guitar is out of tune but I am still gonna hit tritones" sound but for the purposes of solo or lead tones keep it off, if you want heavier high strings get thicker ones, the Fat switch won't make them pop out.