What have been your experiences with Collanos so far?

Today I started it again, and it needed more than an hour to start.
I probably won't use it again, because it became extremely laggy.
I used it mainly in October, and in the beginning it worked fine for me and my collaborateur, but after some time it needed more and more time, although we didn't exchange much or big files via Collanos. We mainly used it like a sort of ICQ. And at the end it needed always about an hour to start, and always several seconds to update.

Maybe, there are such an increasing number of people who are using the tool and the server is overcrowded, or it has a major issue with a repeating function...

What are your experiences and suggestions?