Joined: Jul 2016
Posts: 495
Likes: 842
From: Weston-super-Mare, Somerset, UK
Bikes: Gitane Course, Paris Sport, Peugeot AO8, Peugeot Bretagne, Peugeot Premiere 85, Peugeot Premiere 86, Peugeot ANC Halfords Team Replica, Peugeot Festina Team Replica, Motobecane Grand Sport, Motobecane Super 15, Raleigh Pro Race, Raleigh Stratos, BSA
I've got two roadbikes on Tiagra 9-speed and one on Sora 9-speed. Quite honestly I couldn't tell the difference blindfolded, they all shift equally well, the levers feel good in the hand. The 9-speed system gives a good range of gears with close spacing, and I can't see any need for upgrading any one of them.
As to reliability all the components were second hand when I bought them, and over thousands of miles none have let me down yet.