I'll add my thoughts on these after approx 20miles. Came from knackered Potenzas, Revo Stage 1, that's it. Went to garage this morning had a look at the tyres, they have super thick sidewalls and are really stiff. Went off to work, got them fitted and picked it up tonight.
Obviously they need to scrub in but they are a million times better than the knackered rubber that was on it, unsurprisingly. The ride is definitely firmer, but its still very compliant and smooth, cabin noise is reduced if anything. Grip is much better already, cornering is more stable and turn in is definitely improved.
Very happy with them so far, a good 'mod'.