It's waterproof and requires no underlayment (or even moisture barrier in dry climates like ours). 

Maintaining it is fairly simple also, after each tenant moves out scrape the caulk from around where the tub and tile meets and the corners and re caulk, make sure the caulk matches the color of the tile to blend. replace the caulking every turn to make help prevent the caulk from failing and letting moisture into the wall behind it, if it molds then eventually your tiles will start popping and you will have to tear it all out and replace wall and tiles again. if the tub gets worn down or even as i have saw in the past extremely dirty when no matter how much cleaning you do the grime wont come off just sand it with a fine grit paper and home depot sells a resurfacing spray kit for around 60$ and if you take your time will take about 1-2 hrs then 24 hrs to dry and will look like a brand new tub.

Leave it to Gentle @Ben Leybovichto start a thread with a provocative title "Are most investors idiots. "  This post is an indirect response to his and no I don't have a website. 

Reduce your credit card debt - never mind trying to eliminate it, pay it down to a utilization which will boost your credit score.Oh, and pay it down GENTLY - a few good size payments, not all in one chunk.

Of course the padding and carpet have absorbed it, but on pressing dry towels to it, I am pulling some moisture out.Do I let that air dry, put a fan on it, aim a space heater at it, pull the carpet and pad back, what?

The leak is still there, inside the concrete, just lodged there and will cause moisture buildup inside.

You will have a lot of wood rot due to moisture and termite treatments thats the nature of the area.Hope this helps

Laminate is not a good choice for kitchens, though, or any area susceptible to moisture.

Check with a moisture meter.  

Either a dry-lok type product if moisture is an issue or regular paint suitable for concrete.The flooring is something I am running into problems with.