I did not get any feedback but I pulled the trigger anyway. My first choice on amp was the Cambridge Audio AXR100, but it was out of stock, hence I went with the Marantz NR1200. I also went with the brand new MartinLogan Motion 20 speakers instead of the display units as the seller could not immediately confirm the condition. I'm very happy with this decision after a couple of hours listening, I can honestly say that this is the sweetest sounding set of speakers that I ever owned, and that the Marantz NR1200 amp is very capable of driving them - good thing is that the speakers are not even broken in yet, hence I was limiting the volume.
It was a blessing in disguise that the Cambridge Audio was not in stock, otherwise I would've purchased a plain amp with AM/FM tuner - I would have needed another source for my digital music. The NR1200 has all that I need to playback music from online sources, USB, media servers (via WiFi or wired connection), and via Bluetooth.
I've connected the Motion 20 speakers on a bi-wire setup. I used to own speakers that have the capability for bi-wiring or bi-amp, but I never knew what it was even though I've been a member here for so many years. While researching on speaker and amp reviews, I came across different articles on bi-wiring, and it seems to improve sound quality, hence I tried it on my new setup. I do not have a comparison on the quality if these speakers are not bi-wired, but I won't be trying that, I'm pretty satisfied with the bi-wired setup.