I'll admit my German was, well, a few decades ago, so I stuck with the sometimes strange autotranslate on YouTube! Like you say, he wasn't necessarily criticising the ride, it's firm as you'd expect it to be. You can see in the driving section, it was quite jiggly.My German language is pretty bad
I've no doubts about the i20N's dynamic abilities. It's the day-to-day stuff that can grate and make you regret the day you bought it. I can put up with firm suspension if the seat is good, but I don't see any adjustable lumbar support. And I do long trips for work, so how is the ride on the motorway, how raucous are the engine and the exhaust? And let's not mention how it will deal with potholes. I hope he's right about it being fine as a daily driver; that test drive can't come soon enough!