I purchased the blue version several months back. I will be buying another vacuum. It does have great suction but like someone else stated, it clogs every few feet. Then you take off the plate, unclog it, spill all kinds of dust on the floor while doing so, start it up again, vacuum where you spilled the dust and within a minute it clogs again. I don't enjoy vacuuming and I certainly don't want to spend 3 times as much time doing it having to unclog and revacuum etc. The air turbine head is just this side of useless but that could be because of the constant clogging.
If you vacuum daily, don't have pets, don't have kids, don't get leaves, grass or tissues or really anything but dust on your carpet or floor then this will probably work great for you.
The dirt canister does not bother me. I've been using bagless for years. I started with the Phantom which is the precursor to the Dyson brand and let me tell you Dyson doesn't come close to the Phantom vacuum. But then nothing else does either. I empty the canister over the outside trash bin. I'd much rather do that than what I had to do with my Oreck. You had to wrestle the bag out and it weighed a TON if you let it get even 3/4 full. So, I'm still in search of something that comes close to my old Phantom, which I had repaired until they couldn't get parts for it anymore.