I have just purchased an Icom R-20 and holy hell what a nice receiver!
It's got nothing on my Icom R-5. The R-20 is EXTREMELY easy to use compared to the R5 and it just does so much more. The afternoon i received it i plugged in the standard telescopic antenna it comes with and did some searching. I tuned to the airband, wow it's loud and clear and probably the best i've ever heard! I then did some UHF emergency services, TV etc and it's also nice.
I then went out and sat down on my back deck, under cover, and tuned to the 20 metre band on USB and pulled in 2-3 solid conversations! I picked up a VK5 grey nomad out near alice springs just booming in like he was next to me (i'm in brissie) chatting to Gympie, Sydney & a few other places, but i didn't hear them very well. Amazing! And all with the standard antenna! Later in the evening i was on the couch watching tellie playing with the R-20 and i picked up some 10 metres on LSB, inside the house.
The dual watch function is excellent and the battery life so far seems extremely good!
On the downside, the audio is very weak so i mostly need to use headphones and i've already dropped it (ARRGHHH!!!) leaving a small scratch and taking out a chunk of one of the buttons.

I'll be buying a soft protective case for it ASAP.
All in all an excellent radio.
cheers