Depends what your usage will be. I had a samsung netbook for 2/3 years as i was going to use it for internet and word docs. I barely used it for long typing sessions so gave it to my sister and now use a nexus 10. Much better tool and much quicker than a netbook/laptop because the operating system is not so demanding. If i ever use spreadsheets or word docs i go back to the laptop because you cant beat a physical keyboard,Although you could invest in a bluetooth keyboard.
For speed, ease of use, applications, battery life and portability. Tablets are hard to beat
I got a Samsung tablet with the idea of it replacing my laptop for travel purposes. However, it i really useless for doing anything other than basic email, surfing the web, pictures etc. Although you can edit word and excel docs, it is pretty difficult to do so and very slow/frustrating with no proper keypad. So now I end up taking both the laptop and tablet....
Maybe I should invest in one of the bluetooth keyboards mentioned above and give it another try?
What tablet do you have out of interest?
I have been doing a 2000 word essay on my nexus 10 and found it fairly easy in portrait mode.
Bluetooth keyboard will help if you don't link the onscreen keyboard for typing marathons