I have one and love it. It isn't as strong as my Dyson though.
Go to the appliances forum and they can give you all kinds of information.

You need to look at a VacuFlo. I looked at many different models from all different brands before buying mine. I have the 566Q and it is the best vacuum I have ever had, and I have had them all! You need a bagless cyclonic system like the VacuFlo. A bag clogs with in the first use, a Vacuflo is more like a central Dyson. They have no filters since they are exhausted outside and never loose power. 100% power all the time, whether the dirt bin is empty or almost full. A bagged system will loose power right away and that will defeat the purpose of investing in a central vacuum. Look at the Lindhaus powernozzle, I have a Hayden/Centec with mine and its good but doesnt lower itself down far enough to reach the professional style beber rug we have in our basement.
Good Luck!
Steve

It wasn't on your list, but I second Steve's recommendation of a VacuFlo . . . love mine!

Hello needinfo2,

After a lot of research on the Appliances Forum & other sources, I also bought a SilentMaster by MD, & purchased a Lindhaus powernozzle with it, & a 3-ft hose. I also bought the hose sock to protect woodwork that the hose might drag against.

The system was retrofitted into our 75-year old house three years ago, with 3 outlets plus a "dustpan" outlet in the kitchen (for a 1,950 sf house).

I LOVE this central vacuuum & have no reservations about recommending it. There have been no clogs, no loss of power, & I preferred a "bag" system so there is not lint hanging all over the basement area. A handy thing is that MD sends quarterly email reminders to empty the bag (which is easy to do). Bags can be ordered from MD online & mailed, so I don't even have to go to the distributor.

The only thing I might change is not getting the "dust pan" outlet because it's noisy.

I'm sure you will be pleased when you have yours.