I am very disappointed with the tool. I use it on three different PCs (2 are stationary in different continents, the third is my notebook).

A hard disk in one of the PCs started to die, so i replaced it. All the other licenses still worked, but the KVS tool asked for a new key. Seems they are not able to recognize smaller changes as everybody else. Asked for a new key. Took a while because KVS wanted to know the codes of the other systems (no clue, they were in a different continent).
Finally got a new key.

Now the second system stopped working, seems they invalidated that key in the process. A few more emails (and days) to get this working.

Today i tried my notebook. Guess what: Invalid key again.

I asked to refund the rest of my membership (which they did not even bother to answer).

My next step: sign up for a cloud based solution. Looks like local applications are a thing of the past, especially in combination with a paranoic license management.