I know what you mean about being skeeved about the rental machines

I also used to Work for Service Master and did clean carpets for a part time job. I recall some of the nasties e used to clean and then when we would do a really nice home I would think if only the owners knew what the previous floor looked like that was cleaned before thiers.
I told my DH a caouple of years ago I wanted a cleaner. He got me a Bissell and the really cool thing was I found a rebate out for it. He paid $199 for it then I sent out for a $20 mir. I love the machine I love owning it. It is really nice for furnatiure and small messes. Nice investment to have. I am stingy I don't loan it out either. I made that clear right after he bought it for me. I had family voulnteering me to come clean their floors or offering to borrow it. I don't get many "New" things and this one is something I really wanted so I know whos floors it was on before mine

I think you would be happy with a Bissell they are usally $200 ish Kohls, runs a sale on them often when Dh bought mine at Walmart I think it was everyday price. It does a really good job as far as I am concerned. I have 3 mess makers. Until we had hard wood floored our dinning room I was shampooing my dinning room floor amost weekly and it looked like new everytime after and that was having dinner plated flopped on it every other day.
As far as the deep cleaning I have been "nesting" I have already cleaned my floors. I really need to oraganize the kids closets. My 5 yr old has lost or miss placed his DSI so I have been slowly making my way through their closets. Then my next task is to get all the cob webs and dust bunniws from our pop corn like celings. A broom just makes a bigger mess so I will hook the vaccume hose up and the duster attachement. Once the kids head back to school in Sept it will be hardcore cleaning and potty training for the LO.