Rolemaster Core Law: experiences?

Has anyone tried this out? I played Rolemaster back in the day, but moved on for various reasons. How playable is it? Does it still use the same spell list system?

We found RM to be very playable, but there was some caveats…

Our GM was a real-life lightning calculator (able to do complex math in his head with a single sigh).
We all tracked our own crit/damange/defense charts/tables and actually had copies of them added to our character sheets so that we could just roll, look up the results and have them ready for the GM when he needed to know.

Those two things alone sped up the game considerably and made it very playable. =D


Haven’t picked it up yet, but until then I’ve been considering HARP.