I believe (but worth checking) that innerspace comes with a license for up to 5 computers.

Keyclone is a one time fee per computer, whereas innerspace is a subscription.

I recently moved from keyclone to isboxer and love it.
The wizard results in an FTL setup in seconds. There is a learning curve with setting up new keys - but generally I look for a key that's setup in the way i want and copy it.

Repeater regions are fantastic. I love the mouse broadcasting for quest hand ins and pick up, and if i had a group that had targetted AOE the mouse broadcasting would be fantastic.

I felt guilty moving from keyclone to isboxer, as keyclone stood me in good stead for so long, but IS and ISBOXER allows me to do so much more.