Very nice, I went out in a friends 135i a few weeks ago and it just blew me away. I've been in some fast cars but the BMW was effortless and felt like it had power from seemingly any revs/gear. Makes the Clio feel like a 1.2 in comparison lol.
I only know so much about them as I was minutes from placing an order. Nothing comes close for the money. The Germans though are cheeky with their nomenclature. I had an e-class Mercedes and they are nearly all 2.0 turbo diesels but they call them 200/220/250 depending on output. Very misleading. In the good old days you would know the engine size from the badge.