I have to say, I think they are pretty good on my shimano R561's - I have tried a few pairs - the regular rubino and the rubino slick - all have been the rigid tyre type and all have been fairly good to fit.
The regular rubino is slightly more grippy - especially in the wet - than the slick version, but the slick version is much more comfy - very comfy indeed in fact.
at £16 for two with tubes from wiggle you really cant complain!