Has anyone used both Pioneer and Dennon CDJs? I'm used to using the Pioneer, but the club I'm playing at this weekend has Dennons... are there any significant differences in the way they behave? Does the Dennon have all the looping functions etc?
yes, the Denon has all the features of the Pioneer plus a few more.
If I were you I'd have a practise spin on em in your local music store first if only to learn how to access the various features and functions.