I would say the Suunto Zoop sold to me as part of my reg/spg/compass set when I got my OW cert. But..., it kept me from buying a different dive computer while I researched and researched. Then, the Perdix AI came out and I have not regretted that purchase one bit. Had I not bought the Zoop, I would have bought another AI computer and would not be as happy as I am with the Perdix. So..., no regrets. Well..., maybe the first POS dive knife, but it was too cheap to bitch about.