I have two Scribblers (2100, 3000). I used the 4000 in the testing phase and it was terrible. This 4100 looks much better. All Scribblers have array mics that work very well with DNS Medical. The scroll wheel is a great hardware tool that is a must for reading.
There were some battery issues with the 4000 that hopefully have been resolved by Electrovaya (a battery company). I used my Scribblers from 9-12 and 2-6 with full brightness of the screen and constant wifi charting across a network. (zero power saving employed) The battery would last all day with an hour charge at noon.