Overall I am very pleased and happy with the iPad Pro 12.9 256 Wifi+Cell. Was tempted to get 11 inch but it was too small for me to split screen and do work. So decided to get 12.9 inch instead, really no regrets. The screen is suitable for any work if you like to multi task side by side.
The speakers of iPad Pro is very good and has bass and stereo surround effects. The keyboard and the pencil I see is a very good to have to compliment the overall iPad Pro experience. Compared to the older gen pencil, this 2nd gen pencil is much lighter. Although it has a magnetic function onto the iPad, but the chances of getting it lost can be quite high. Only if the Keyboard cover has a slot to contain the pencil that will be even better.
The 1st gen and 2nd gen pencils weigh the same.