I upgraded from a 23i to the 3.0 recently. I was in two minds whether I should upgrade to a 35i but when I drove the 3.0i It was plenty quick enough for so deal done. I too had concerns of costly turbo issues which I know are rare, but they happen. Same with the DCT, they don't fail often but when they do it's serious money. The 3.0i is pretty much bomb proof and I bought one with the sports auto box with paddles so it's effortless to drive, has plenty of power and great fun when you hit the sport button. I was also surprised how quick and smooth the gear change was, not as quick as the DCT to be fair, but how quick do you really need to change gear in a road car. I am a couple of months in now and have no regrets in not getting a 35i
