Riding the bike on the road to the forest, and up hills didn’t seem different at all. Riding downhill seemed a bit less steep (which was nice). And it seemed to smash through rocky/rooty singletrack a little better too. Technical climbing wasn’t any harder and I didn’t get any more pedal strikes than I usually do ;).
The change was subtle but noticeable. I wouldn’t pay £130 for the change, but was happy enough with the £50 it cost when buying the bike.