Well Im not entirely sure what you're after. I buy vacuums for their performance and design. I am hesitant to ask what your criteria is, if it is different than mine. However I know you go in for the "marketing speak" so lets just dispel a few truths:
"...It has a long-life compressor motor with aerodynamic blades and perfectly calibrated air flow, providing you with optimal dust pick-up at a low energy consumption level. All parts are optimised to achieve highest performance and comfortable handling, from the top quality floor tool to the soft-grip carry handle..."
Roughly translated as - quiet-ish German made motor with variable suction control and a heavier floor head to compensate Eco version. All parts aren't optimised as they lack the locks that Miele and SEBO provide on their cylinder vacs. Thus unless you jam the tubes on from the handle to the floor head, you'll have fun trying to remove them all if using the hopeless 2 cleaning tools you do get and if you don't jam the floor head on tightly, it is liable to move about..."
Well, whatever you decide on I WOULD SUGGEST that you actually visit John Lewis because they sell both the AEG that you asked about and the Bosch models. I'm about to submit my review online about the Bosch GL-50 bagged cylinder vacuum and as you know it isn't about to be a bed of roses.
The newer BSGL3000 series is compact and not as noisy as other brands - however, none of the Bosch bagged vacuums have a dust brush (here is where Wilko's various brushes including their Electrolux Butterfly brush tool would be good as it comes with a 35mm brush adaptor) their smaller cleaning tool consisting of the upholstery lint picker tool is hopeless and a cheap afterthought whilst the crevice tool is a short stubby affair similar to Miele but lacking quality.
Sure, you do get a "long" 8 metre cord, but like SEBO its a pull-pull cord, which means around corners, if the cord gets stuck under doors, it is liable to re-activate and either weaken the plug in long term use, or pull the cord back, thus pull the vacuum cleaner back. The hose is also shorter on the Bosch.
Already, I do hope you can read between the lines as to what my review of the Bosch GL50 will also reveal - and that's supposed to be Bosch's TOL bagged cylinder vac!