Tubeless
On both bikes I put tubeless and replaced OEM wheels on my bianchi with i9 for tubeless. The ride is smooth (can operate at lower pressure if you want) and I've had a few punctures that have filled and allowed me to continue ride and get back home without problem. Peace of mind is one big factor. But I also find with current tires (Hutchinson Sector) I'm getting a very nice ride for long distances. Cons would include that they are slightly more challenging to change with the sealant. I'm sold on tubeless.