I bought the ComponentOne suite a long time ago, while this is almost the only one around and VS had nothing but a few months of release time.
What I found then was a set of products needing a lot of testing, very buggy.
From the ComponentOne part, a lot of effort to make it right, releasing new versions twice a week fixing a lot of errors.
As it looked like this would never end, I moved on to DevExpress and I'm still very happy now with the DXEnterprise package.
Recently I received a notification that I had won this ComponentOne package and I thought... wow... what a luck!
$999 product just knocking at my door.
Sadly enough I can't find anything better than what I have with DevExpress.
The only tool that could relief me some pain in the neck (this XLS component) does nothing exciting and nothing that I couldn't already do with my current tools.
I find this really sad because this is one of the first packages available for .net but a few years later they add nothing new to the scene...
Cheers,
Alex