I don't think you will find any owners here as the 1.4 tsi octavia has only been out 5 minutes. it's a good little engine delivering pleanty of power. octavias are good value for money and reliable, so probably quite a sound buy.
Perhaps a testament to the 1.4 TSi is that new VAG cars with that engine are on a long waiting list as they're so popular (that's what I've heard anyway).