Why not. If you like the series and want to continue playing it then go ahead. Its more of an arcade game than an RPG though, just be forwarned.
This. My friend let me borrow it, telling me it was an RPG. To me, Oblivion is an RPG. Dragonage 2 was disappointingly linear. If you're desperate to play it, then get it, but if you're unsure about it, my advice would be to buy something else.