I use a Bamboo, medium sized. It is accurate and has a good feel to it. Its pen does not have felt tips and other extravaganzas the more expensive models have, but I do not think you need them. The tips do wear out quickly though. It cost me 160€. The main problem I see with the “Inkling” is that it seems to be just accurate enough for sketches, so if you want to refine it later on your PC, you will need a proper tablet anyway.