Bests & Worsts Reviews from Amazon

I got these yesterday and a few hours later I had two Uno's talking to each other. I tried a few libraries and found that the "RF24" library from maniacbug.github.io/RF24/ This library seemed better than the MIRF library in the quick look that I took at each. My project will use 5 of these to communicate with one central/master unit. Communication will be directional. I have not yet tested the range on these. I hope to use them about 50 ft from each other (unobstructed). If I experience range issues I'll come back and post an update here. If you're thinking about going wireless and don't require 802.11b/g/n then give this a shot. It is cheap and works well! Update: 9/10/13 I've had a chance to connect 3 of these and have them send/receive data and it worked reliably. I moved the units all over the house to see if I noted a change and I got the data with out missing a beat. I didn't test if there was a change in data rate but I didn't notice any issues. Update: 10/2/13 I took a pair of these outside, connected to Arduino's. They were mounted in plastic project boxes and I tested the range. Unobstructed range was 50 feet. After that the signal dropped off and I got no reply. In the house I tested on different floors of the house and went from the basement to the 2nd floor and they were able to communicate with out an issue.