It was pretty sluggish out of the box, to be honest I didn't like it much, but when I set it up myself it became a great performer.
this is easily the best pyraminx on th emarket as it has lots of customisation options and fits any turning style would recommend
perfect cube, very smooth movements
this is probably the best mirror block that i ever tried. will make a great christmas present but who asked for a uv mirror block?
I bought another Tengy as a backup before they're completely discontinued. Smooth, soft, quiet! I prefer the stronger springs and use a lot of thick lube on the tracks to make it more stable.