I received my refurbished Note Pro last week for 375€
from a Dutch site. Reviews of the site indicated that they had a reasonable number of customers of which some were very happy and some not quite. So with a failure rate of 10% for electronic devices, that was what I expected.
The device is running perfectly on firmware 2.2.x. I can upgrade to 2.3.x, but I rather wait until I have a full backup. (
This thread seems to prefer the even earlier firmware 2.0.x!) I've rooted it with the dirty-COW exploit following the snippet
here, so I wouldn't have to use KingRoot and try to delete it later. I haven't been able to backup the partitions, yet.
There is some problem with the calibration of the pen on 2.2.x. After a while there is a 2-3mm distance between the point that I touch on the screen and the appearance of the corresponding dot. Googling showed that it could be due to the driver offsetting the pen location when you go off the side of the screen. Basically, putting keeping the pen on the screen. Scratching some lines across the sides works to recalibrate it.
So far, it is a very decent, well working device. I think it is very nice that you can jot quick notes in the margins and write extensive notes on a highlighted piece of text. Also, the fact that you can disable the Onyx keyboard in favor of the standard android keyboard is very nice. I only have to find a dutch word list for word completion, as it isn't included in the standard installation.