If you're deciding between this and Grimms Large Stepped Pyramid, choose this. The pyramid looks really cool (and these *are* a different scale than Grimms blocks) but that means there are 4 tall pieces and 36 cubes. You're much more likely to want long pieces--plus if you have other Bauspiel this works fantastic--they fit in the holes of grids and the holes that a pair of x blocks make. The color coding matches their rainbow and building with the two together makes for a pretty cool looking tunnel.
I was between these and the LSP. Love how these match other Bauspiel pieces!