I've never used a self contained extractor. My Powr-Flite upright is about a year old and works great so far.Powr-flite isn't the best made in my opinion but i got it at a good price. It's the 200 CFM model with 2000 watt heater. I have just finished 10,000 sq/ft. job Commercial glue down.It's a little hard on the back using a wand on large areas.
The only thing I have thought about in the past with self contained is the flexability of the machine vs. a wand. If your doing commercial you need to get under desks cubicles etc. Do you have another machine also? I can see the self contained being used on wide open areas.By the looks of it the CFR might be a better made machine than the Power-Flite. Hopefully you'll get more feedback.