The performance of the 14 is similar. However, I'd much rather flip the handle around like in the DC07 and use a COMFORABLE handle for attachment use instead of that inane thing they slapped on the DC14. I also don't like the tools on top of the dirt tank... they fall off and are in the way then I transport the machine or empty the bin. I also don't like the washable filter being right in the dirt bin (even if it is separated by the cyclone assembly)... I much prefer it in the place it was on the DC07. PLUS, I think the trigger release is easier to use than the push button of the DC14. The 14 must be the worst Dyson ever made...
I don't know why the duplicate post happened!