Yes, it uses LS bags
I got the vac tonight after work, and just assembled it and used it for the first time.
It does use type LS bags, as well as a HEPA filter.
First impressions:
This cleaner is pleasantly quiet. This is a nice change from the bagless vacuums I've been using, which tend to have a lot of air noise.
The vacuum is well built, I think. It does have a mostly plastic body, with the tube for the handle being metal.
I like the 40 foot power cord - it allows me to vacuum multiple rooms from one outlet.
There is a headlight, but it's fairly low powered - and gets dimmer as the vacuum motor scrolls up. But I generally find vacuum headlights to be an iffy feature anyway.
The 5712 seems to work well both on carpets and hard floors. In fact this is the first corded vac I've used to sweep the kitchen and dining room hard floors with.
The suction at the hose seems very strong.
The packaging says this unit has a "commercial motor", which hopefully is going to last longer than the cheap Chinese motors discussed in other threads here.
What was really nice is the "Repair Parts List" booklet that comes with the vacuum. It even includes a part number for the motor, with several pages of full diagrams.
Overall, I'm quite pleased with this machine. It does suffer in comparison with other vacs in terms of its relatively narrow (12 inch) base nozzle, but this is probably a good thing as it concentrates the suction more than a really wide base would. I also find it much easier to manuver than a wider vac. I'm not overly thrilled with the machine having only one standard extention wand - the other one being a combination wand/crevice tool-but they look like standard issue Eureka wands and I probably have a spare somewhere if needed.
After the first vacuum session I did notice some very fine dust inside the bag compartment. This doesn't worry me too much because the HEPA filter will prevent anything from getting back to room air, however it's something I will be tracking.
The wheels are nice - the rear wheels have a soft rubber tread, much nicer than the hard plastic on other vacuums I've tried.
On this vac, the brush roll height selector actually works well, and in a positive manner.
The vac came with a spare belt and bag - nice touch.
Consdering that the HEPA filter on this vac will prevent any dust over 22 microns in size from re-entering the room air, and it uses nice Filteraire bags, I think this one could be a keeper.