Seeing as Torchlight II's release date is soon approaching. I realised that I have barely completed Torchlight I. Seeing as I am quite desperate to get playing Torchlight II with my friends, I would quite like to start playing it upon launch.
My question is, Should I complete Torchlight I before starting to play Torchlight II?
Are there any parts of the plot in Torchlight II I wouldn't understand without completing the first game? Also, would there be any spoilers in the second game that would ruin my Torchlight I experience?