I've been running my Mk3 Jazz with it's OEM LED headlights for just over 12 months now and I can't see any real difference between them and the Classic-car-leds, that I previously had fitted to my Mk2 Jazz.
Both are a vast improvement on the H4 filament, 'candles' of the earlier cars.
There may be a grey area, as to whether the Classic-car-leds are legal or not, but if they pass a MOT, then that's good enough for me.