Just a follow up. Had a chance to use the Spotbot today.
My verdict.. I say the good, bad and the ugly
It did a fine job on removing some spots which would not come off with a regular steam cleaner.
Also, used the hose attachment to remove stains on a mattress. Worked great, mattress looks like new now.
Unit seems very well built. Hose, and brush fit snugly on the unit.
If following the suggested solutions to add, the machine uses a lot of solution.
Some stubborn spots didn't come out. I thought it'll work better on some of them.
Using the machine on a high traffice area of carpet leaves "crop circles." That is, a clean circle surrounded by area that isn't as clean.
Haven't used it on pet stains yet. I think overall, it is handy to have around, but isn't perfect.