I have found this ice to be particularly great in RP as the runner is forced to run a central server. Plop it down in front of HQ and/or R&D while having your score server ready with an agenda. Rez it when they run either central server and BAM, an open scoring window. Make sure that that you have Swordsman out in case they are running AI breakers, they only thing that can stop this ice in a hurry.

Its better on your scoring remote where excalibur and nisei tokens or caprice can lock them out for the rest of the turn. —
I have also taken to putting it on a central (along with Uroboros, considering this is unique) instead of a remote. I'll have to try this on the scoring remote, though. With Caprice + Ash + Nisei tokens, that server is on lockdown. —
Excalibur is unique - but can you also reveal it from your hand if you have one copy installed? —
I don't see why not, but it is much more likely to get broken when revealed. Because it adds the routine to an ICE with an 'ordinary' type. —