I have a 150 and have been riding it for 6 months. Tear down of the switch infinity takes 15 minutes and it’s don every few months when the fork lowers are done. Any more and it accelerates wear.
NSMB abused the switch infinity on purpose and caused very little damage to the Kashima.
Yes it’s expensive but it does ride incredibly well. Silverfish were out of stock of a part I wanted when fitting the EXT. Chris Porter actually machined me a £4 bushing. Silverfish wanted £300 for a service kit! That’s the only negative point I have about the frame.
I’d not hesitate to buy another to be honest. The only thing I would also like to try is a Pole Stamina, but I think it may be a bit too big a bike for the Surrey Hills.