Anyone that is a fan of the Clever will absolutely love the Bonavita. It like the Clever's much classier cousin. I love the porcelain upper. I do wish that the entire unit was made of porcelain, but everything that touches the coffee id porcelain, so I can live with the plastic base.
I tried the Bonavita using the Kone v3, a nylon filter, and a Melitta #4 paper filter. The Kone produced IMHO an excessive number of fines, and there was quite a bit of sediment in the bottom of my cup. I probably could have adjusted my grind to reduce the number of fines, but I just moved on the to the paper filter. I had a similar problem with the nylon filter.
The Bonavita produced a most excellent cup. It was similar to a CCD, but I think that the BVID was better, probably due to the fact that the preheated porcelain cones had better heat retention through the 4 minute steep time.
Cons:
No major flaws that will keep me from buying one.
One weird quirk is that when initially releasing the valve to drain the coffee, it has a tendency to spray out sideways. The first time I made coffee in the unit, the cup was too large for the BVID. I was holding the brewer above the cup, and when I released the valve, it sprayed a little coffee onto my counter.
The plastic bottom has lots of nooks and crannies could be hard to clean.
A coworker made the observation that the very tip of the porcelain cone, the part that valve in the bottom seat against, looks to be unglazed and could pick up coffee stains. This part is hidden in the bottom so it;s not a big deal.