Unfortunately I never had the pleasure to try a Shuttle pad even though I had a PCE Shuttle console. The pad definitely looks cool and more comfortable than the standard 2 button pad.
The cordless pad is my favorite out of my controller selection. Mainly because it's my newest pad that doesn't feel worn.
I also have the Hori Fighting Commander and Ave 6 pad. The Hori is a decent controller, but I only use it for fighting games. Like others have mentioned, the D-pad feels very similar to a SNES controller and I kind of prefer the NEC type d-pad, especially for shooters and non-fighters.
Most pads are rarely worn out ( ie, the rubber/electrical contact under d pad or buttons) unless it's been played consistently for the last 2 decades, but they do sometimes to have external sourced liquid regression which ruins the pad
I have reconditioned snes, pc engine, playstation 1, ps2 by dismantling and cleaning the individual components, pcb and rubber contacts so it feels like as if the controller was purchased a few years ago as opposed to a few decades ago.
I use isopropyl alcohol ( medical grade at 70% is fine for controllers, apart from metallic coloured hori pads) cotton buds and cotton facial pads.
