I had a look at the Perfect C103 white version of this vacuum a few months ago, as one was in at a local vac shop for repairs as I was picking up some parts. Yes, it is a nice vacuum, BUT it also has some drawbacks.
The plastic ring on the exhaust filter that mounts it to the canister, and where the air enters the filter, is at the top end of the filter - so the exhaust air wouldn't distribute evenly across the filter area surface and the filter wouldn't get dirty evenly, meaning that filtration would be compromised as the filter wears and gets dirty. Compared to the original Electrolux after filter that has the plastic ring in the middle, and the exhaust air spreads evenly across the surface area of the filter, so it gets dirty evenly and avoids the problem the Perfect exhaust filter has. You could put a Electrolux filter on the Perfect, but the filter lid won't fit on though. So you would have to find some way to keep it from flying off.
In addition, there is no friction ring on the exhaust opening to keep the filter in place. The plastic ring on the exhaust filter just fits loosely. If the filter lid wasn't in place, the exhaust filter would blow right off, meaning the exhaust filter isn't sealed to the canister at all! Also, because of this, and that they are using the metal body hose connector on their hoses, there is no way you can use the vacuum hose on the exhaust port and use it as a blower. That's a MAJOR disadvantage compared to a Aerus Classic canister!
The generic electric hoses that Perfect uses are nice, but are known to have issues with the screw holes and sliding suction control valve on the hose handle failing over time. And who knows for how long the genuine Electrolux metal body electric hoses will continue to be available, plus if you do substitute the genuine hose for the generic hose on the Perfect you lose the ability to turn the powerhead on and off. At least with the Aerus Classic powerhead, you have the switch on the powerhead, so you can use any hose you desire and not lose that feature. Also note that the Perfect powerhead has had issues with quality control in the past and the plastic screw mounts that hold the motor in place failing.
The only advantage the Perfect and Clean Obsessed canisters have is that the Ametek 119995 single stage motors they use is easily buy online or in a local vac shop, whereas with the Johnson motor in the Aerus Classic you are most likely stuck dealing with your local Aerus dealer for replacements.
However, in my humble opinion, I think a consumer would be far better off just buying a used Electrolux Epic 6500 SR, LE, 2100, Ambassador or Diplomat, and refurbishing it with a new Electro Motor double stage motor that pulls 117" waterlift. You're getting true Electrolux quality designed to last that way, and for a fraction of the price of buying new. Even if I had to buy new, I would rather pay a bit more and get the Aerus Classic.
