Yes it I s smooth I can't fault you there with seemless gear changing, I've only just got mine back from the main dealer, after driving an Insignia around for four weeks it's heaven and feels new again. Taking mine on its first big trip the weekend Portsmouth to Devon and I'm looking forward to the drive 👍
I ran the Goodyear EfficientGrip Performance until the wear indicator and got ~15k out of them.
After a little research and advice from the manager at my local F1 Auto Centre my choices for replacement were either: Michelin Pilot Sport 4 @ £125 ea., Goodyear Eagle F1 Asymmetric 3 @ £113 ea. or Cooper Zeon CS Sport @ £110 ea. Timing was such that I had the Goodyear Eagle F1 Asymmetric 3.
They feel good and are possibly a bit quieter that the EF (and I will hopefully be able to do few k more mileage too).