The top end PSLR-1s are very good, the others less so. Tyres are the single most cost effective upgrade to a road bike and R&D costs money. Giant don’t make tyres ;-). Schwalbe Ones are a favourite of mine, but I also like Vittoria Open Paves in 25 or 27c for damp winter roads. I’ll be racing the 25c’s again next week.
Be VERY careful fitting those latex tubes to whatever you buy. Blow some air into them before you mount the tyre and check there is no inner showing when you put the tyre on. Then check again. Then partially inflate the tube and check again. Then deflate and check both beads again. Then inflate one last time. Latex are so flexible they can squeeze under the bead, and with road bike pressures, will let go and BANG! If you are lucky, this happens down the road, if not it will deafen you in the dining room. So i’ve heard 😉