I would consider a Chromebook of some sort. I recently picked up a refurb for about $160US and it is a joy to use. It has much more processor (Celeron) and RAM (4GB) than the RPi 2. It also comes with a full HD IPS screen.
One advantage the RPI is that you could use a much larger monitor. Could also be done with the Chromebook but would be an additional cost.
The Chromebook would perform the functions you list and will be easier to manage.
OTOH, perhaps Chromium OS on the RPi would be the winner.
(I think I need to put that on an extra SD card and give it a test drive.