Ed,
What kind of negative experience are you looking for?
Customer service? Their customer service is top notch, there's very little room of improvement for their CS. (at least, that's how I felt when I deal w/ them, both Russell & Steve)
The look? It's one of the best looking speaker I've seen.
The sound quality? For it's price, I think they'll be pretty tough to beat. I do wish that they (Diva 2.1) would have more lower extension... as much as the Dynaudio if possible

. But I think that would be asking too much... coz even the Dynaudio has more bass than the CDM 1NT.
Joel