Dyson DC39 Ball Canister Vacuum

Does anyone know how this compares to the DC23? Is this just a newer model with the Ball vs wheels or are there more significant upgrades?

Here is the last DC 23 Woot sold for $179.

Been sitting on the fence over the last few Dyson deals. The canister design of DC39 push me over this time. Just pulled the trigger on the purple one.

I recently got one of these, not from Woot. I’ve wanted one for a long time and I kept missing the Woot deals, so I got lucky and found one locally from a private seller at a great price. My first impression, when compared to a Miele, is that it is cheaply made. The plastic feels flimsy as does every thing else when compared to the Miele. BUT, the Dyson has superior sucking power to any other vacuum I have tried. It rolls really well over and around obstacles. I also don’t like they that they use a proprietary way to connect the pieces. I can’t use some of the other tools I have from other vacuums I have owned. At $200 this is an ok buy. At full retail it si crazy expensive.