If you made it this far in the reviews to hear what 'new' information is out there. Thank-you, for reading this far, and hopefully your back side doesn't hurt as much as mine from reading and sitting through it all.
This is what I have found out (as CR would do it)
What to look for:
1) No belts
2) Separate tanks for dirty and clean water (the dirty water can be emptied and thus less weight to move around. Also you won't be washing your carpet with dirty water)
3) a warranty
4) 12 amp or larger motor
5) good suction (better suction equals less water in the carpet - I take it) Usually comes with the larger motor (maybe ??)
6) Removable brushes -for easy cleaning. From- get this, because everyone on this site that is looking for one has one, including myself, cat and dog hair. Brushes also provide a scrubbing motion for greater dirt removal.
7) LIGHT WEIGHT (this is self-explanatory, I hope)
8) A bare floor option- if needed or you are just wasting your money. HOWEVER, usually the more money spent the better the machine as in...
9) a detachable tool caddy - for upholstery
10) the attachments can be stored on the main console. Thus not to lose them in storage when you might need them.
11) a LONG cord length- I can see that you will get carried away and the cord will come out just as you have the last far square meter to finish. Then you have to walk across you you use cleaned carpet.
12) Ease of use, but hey how will you know that until you use it. Again thanks CR
As to not 'paint yourself in a corner' start in the furthest corner (in) and work yourself out. Again look at long to cord to make this happen.
Better to buy than rent because you can do the carpets at your leisure and not be rushed to return it.
Rug doctor is the best. However you either pay at least double, of any carpet cleaner you get in any retail store, to own it. OR you rent it.
the sites that I used-
http://homeparents.about.com/od/carpetandfloorcare/tp/steamer.htm(they had a pointer to this forum)
http://www.carpetcleaningstuff.com/
www.amazon.com - sorry even though I am CDN you have to go the American site to get reviews. You must navigate to get to it, under home and garden->Vacuums->Vacuums cleaning and storage->steamcleaners
http://www.epinions.com/Vacuums--reviews--steam_wet_dry?_redir_att_abrtd_=1You can make up your own opinion from all of this research.
Sorry for making this so long. However I THINK it's going to be helpful. So you won't be as frustrated as me, hence the humour.
LASTLY (YAAA!!!, and the crowd goes wild) You need a membership to post or reply to the forum. I never knew I had one and that I was paying for information that was out of date and non-existent. I made it a reply because I never knew (too confused by this time) how to make an original post.