Watts Premier RO-Pure 4-Stage Reverse Osmosis System
 

Just put 1 of these in, wasn't that hard to do. The quality of parts is a lot better than I expected. Easy system to change filters. I like it:) Amazon.com: Watts Premier RO-Pure 4-Stage Reverse Osmosis System: Home Improvement

Does it remove chloramine?

I've looked into these but the biggest problem I have with them is that they use quite a bit of water to obtain the end product. Some use 4 gallons of water to produce one gallon of purified water.

Yep, LOTS of waste.

I added one of these to the cold water tap of my kitchen sink.
"Prep Sink & Bar" Water Filtration System
It reduces the pressure a bit, but I figure it helps with the cooking water. We also added a filter to the line feeding the refrigerator. Then we replaced our old refrigerator with one that has it's own filter and water dispenser. I guess our ice and drinking water is now super, triple filtered.

Still, despite all that, it can't touch the well water at my mother's house in the panhandle of florida. You can taste the difference in her water. Not only that, but the ice freezes almost completely clear.

Dunno, just needed something better than what I had....5. But isn't distilled water purer than reverse osmosis water?
Distillers typically remove a few parts per million more of common mineral constituents like sodium. However, distillers don't do a good job with volatile chemicals with a low boiling point. Chloramines, for example, which many cities now use instead of chlorine as a disinfectant, aren't removed well by distillers. Reverse osmosis, with the carbon filters that accompany it, does a very good job with chloramines. Unless volatile chemicals like chlorine are removed by carbon filtration before they enter the distiller, they will be released into the room air or they will end up in the distilled water. But in general, distilled water is very pure, as is reverse osmosis water.
6. A friend told me reverse osmosis units waste a lot of water, is that true?
It depends on what you mean by waste. A home RO unit uses water to clean itself and wash away impurities. It's like a lot of other water-using appliances. We use water to wash clothes, to wash dishes, to wash cars, to flush toilets. A reverse osmosis unit uses more water in its operation than you actually consume, but it doesn't use enough that you'll notice it on your water bill. It uses water only while it's filling its storage tank. When the tank is full, the whole unit shuts down and no water runs to drain. It is typically like two or three extra toilet flushes a day.

Steve is right. I only spec out Everpure systems for clients. Their H300 filters are great. You could hook it up to a heater and a chiller for both hot and cold drinking water. At my house, the drinking water goes through the Everpure filter before it goes to the ref. instant hot is at the sink.

RO knocks down the calcium and other minerals in the water. I've wondered if this is a reason for osteoperosis in many people.

My house in Western Mass had the best water! I should have had a mineral analysis completed. It was well water from more than 1000 feet down. The water was blue! It was very hard and made fantastic beer.